Saif iit mumbai. Patel et al. Saif iit mumbai

 
 Patel et alSaif iit mumbai SAIF IIT Bombay’s Post SAIF IIT Bombay Your partner for sophisticated analysis like: HR-TEM, 2D-NMR, ESR, (HR, Orbitrap HR, GC)-LCMS, 3D TOF-SIMS, SAXS, TGA-DTA, DSC etc

J. C. 4. Laiqahmed MOMBASAWALA, Sr. No. We are currently not accepting payments via DD mode. Professor at Indian Institute of Technology, Bombay Mumbai. ac. 210, Sophisticated Analytical Instrument Facility (SAIF). 1w Report this post Report Report. Copper anode is used as the target material with fine focus filament as the cathode. The Lawrence School - Sanawar - India 10th. INDIAN INSTITUTE OF TECHNOLOGY BOMBAY. The instrument is equipped with different detectors, GIS systems and micromanipulator which make it ideal for to. Indian Institute of Technology, Bombay. 2012 – Nov. 2. in Polymer in 1996 from The Indian Association for the Cultivation of Science (Jadavpur University). Extra charges may be levied depending on the analysis. Sacred Heart Convent School. Hearty Congratulations to: Abhishek Mishra &, Ramesh K. ACADEMIC UNITS. Reprints and Corporate Permissions. in Stylus Profilometer Charges . Google Scholar . Jul 2019 - Jul 2019 1 month. e. Footer Menu First. Balanda. 24 (2010-11), STIC, Cochin University for elemental analysis and TGA, SAIF, IIT, Bombay for ESR spectra, Central Instrumentation Facility, Pondicherry University for far-IR spectra, Indian. Hsueh et al. Varalakshmi, Junior Technician. SAIF IIT Bombay’s Post SAIF IIT Bombay Your partner for sophisticated analysis like: HR-TEM, 2D-NMR, ESR, (HR, Orbitrap HR, GC)-LCMS, 3D TOF-SIMS, SAXS, TGA-DTA, DSC etc. ac. Powai, Mumbai – 400076. The Helios 5 UC model combines the Scanning Electron Beam (SEM) and the Focused Ion Beam (FIB) in order to achieve analysis at. Internal Links. Dr. Gopinathan(PhD, 2012-2017): Sr. The result of this policy is that all can benefit from the services of SAIF. Payment Details : You can pay through "Electronic Transfer(NEFT)/Demand Draft(DD)". Citations Crossref 4 Web of Science 2 Scopus 3. SAIF IIT Bombay’s Post SAIF IIT Bombay Your partner for sophisticated analysis like: HR-TEM, 2D-NMR, ESR, (HR, Orbitrap HR, GC)-LCMS, 3D TOF-SIMS, SAXS, TGA-DTA, DSC etc. Tech. D. Acknowledgments. inAcknowledgements. Udayan Ganguly and Prof. Visiting Scientist, IBM T. Sophisticated Analytical Instrument Facility (SAIF), was Established at the Indian Institute of Technology, Bombay, in the year 1976 . Taylor & Francis does not sell reprints or permissions for this article. Mrs. A vapor-compression water chiller comprises the 4 major components of the vapor-compression refrigeration cycle (compressor, evaporator, condenser, and some form of metering device). Contact Sayoni directly. Thermal Ionization Mass Spectrometer (TIMS) Thermo gravimetric/ Differential Thermal Analyzer (TG/DTA) Vibrating sample magnetometer (VSM) Workshop. 50391588). Central Research Facility Indian Institute of Technology Delhi, Hauz Khas, Delhi 110016. Provide solid samples in powder form. REFERENCES 1. 01% mass resolution. Through this event we wish to increase awareness of the facilities available in our Centre and showcase their capabilities. No. iitb. Absolutely. 2014 - 2016. SAIF Room No. saif@iitb. Indian Institute of Technology Bombay Powai, Mumbai 400 076. Krishna Mohan. Swachhata. Sayoni Sarkar for her selection in the prestigious CAS Future Leaders Program 2023. industry [at] ircc. in. Acta Naturae 2014; 6:35-44. in. IRCC Webmail ; Internal Users ; IIT Bombay Homepage ; About IRCC. Disclosure statement. Bachelor's degree courses in Culinary arts are generally full-time courses. Disclosure statement. D. 4441/4472. + M. IIT Bombay, set up by an Act of Parliament, was established in 1958, at Powai, a northern suburb of Mumbai. in. Instructions. P. If you are SAIF/SICART/Internal User. Liu et al. in before submitting the samples. Mohd SAIF, Master's Student | Cited by 3 | of Indian Institute of Technology Bombay, Mumbai (IIT Bombay) | Read 1 publication | Contact Mohd SAIFmeasurements were carried out at SAIF, IIT-Bombay using Bruker, 3000 Hyperion Microscope with Vertex 80 System operating in the transmission mode from 4000 to 400 cm-1 with a spectral resolution of 0. ac. S. iitd@gmail. SAIF, IIT Bombay houses a variety of major analytical instruments which are operated and maintained by a group of Scientists and Engineers. Type of analysis possible. The Indian Institute of Technology Bombay (IIT Bombay) is a public research university and technical institute in Powai, Mumbai, Maharashtra, India. focused in Electrochemical Energy Storage from IIT Bombay, India. 26 Oct 2023. ABOUT SAIF. Chemistry, IIT Bombay,… The SAIF (IIT Bombay, Mumbai, India) data-base, which has over: 62,000 patterns, was used to identify: components in the extract and, analyse them using: mass-spectrometry HR-LCMS. Amit Vitthal Kumbhar Contact : 022-2159 6864 Email Id : aptlab@iitb. We are currently not accepting payments via DD mode. This is achieved through additional advanced compulsory courses, electives and a fourteen-months long Dual Degree Project in the final phase of the program. 4. f. 91-22-2576 7030 / 7039. Mohammad Saif Ansari Growth Analyst @ApolloHospitals | Ex-OLA Electric | Ex-TFE Researcher @IIT Bombay | Analytics | Thermal and Fluids EngineerIIT Bombay - Indian Institute of Technology - [IITB],Mumbai, Maharashtra has 136 Courses with Average Fees 2,17,750 per year. ac. The support provided by SAIF, IIT-Bombay is greatly acknowledged. SAIF, IIT Bombay houses a variety of major analytical instruments which are operated and maintained by a dedicated and qualified group of Scientists and Engineers. a device-circuit-algorithm co-design team was formed led by Prof. Together, the team has designed the global first spiking neuro-synaptic. Obituaries customarily include the following: (1) date and place of death; (2) a brief summary of career; (3) interests, passions, hobbies, publications, honours and other distinctions the alum. IIT Bombay is the topmost preferred choice for Indian students in STEM fields such as computer science and engineering. Author thanks the Head RSIC (SAIF), IIT Mumbai for EPR measurements. Contact No : +91-22-25768692(Off) Fax: +91-22-25723314 E-Mail: [email protected] all the samples, three diffraction peak positions correspond to the lattice planes of (1 1 1), (2 2 0), and (3 1 1), are very well matched with the cubic zinc blended structure (JCPDS No. SAIF, IIT Bombay has several analytical instruments and provides measurement services to IITB users and to users from other colleges, universities, national laboratories, and industry. The sensor is made up of Pt-Rh wire. SAIF IIT Bombay Feb 2018 - Present 5 years 10 months. New Mehrauli Road. Specific heat capacity measurements are also possible. Visar Berisha(Arizona State University, USA), Prof. Catal. in. The authors thank Indian Institute of Technology Bombay and Ministry of Human Resource Development, Govt. Fifteen Sophisticated Analytical Instrument Facilities (SAIFs) which provide sophisticated analytical instruments to users are functioning at IIT, Chennai; IIT Mumbai; CDRI. Evaluation of antibacterial property by micro broth methodFor any query, please contact HFNMR Lab, 304, SAIF, IIT Bombay or ashutoshk [at] iitb [dot] ac [dot] in; Instructions for Users. TEM images are formed using transmitted electrons (instead of the visible light) which can produce magnification details up to 1,000,000x with resolution better than 10 Ao. Pratika Petare has been selected for the post of Student Counselor (Scale-I) against Advt. He also served Electron Microscopy facility at SAIF, IIT Bombay, for a year after completion of PhD work. industry [at] ircc. SAIF IIT Bombay’s Post SAIF IIT Bombay Your partner for sophisticated analysis like: HR-TEM, 2D-NMR, ESR, (HR, Orbitrap HR, GC)-LCMS, 3D TOF-SIMS, SAXS, TGA-DTA, DSC etc. ac. The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. 2, Fig. perform high-resolution imaging, nano-patterning, material deposition, milling. 2. Indian Institute of Technology Bombay vacancy notification 2023 for Non-Technical Apprentice 20 Posts. The authors would like to thank SAIF, NEHU Shillong, India for TEM analysis and SAIF, IIT Bombay, India for FEG-SEM analysis. SAIF, IIT Bombay houses a variety of major analytical instruments which are operated and maintained by a dedicated and qualified group of Scientists and Engineers. SAIF [email protected] Sys & Control [email protected] Related Links. Contact : 022-2159 6866/89. Recommended articles. 2. These bachelor's degree courses come in general as well as specialization form. student Ms. Venue : VMCC/ SAIF, IIT Bombay, Mumbai: About the workshop: YOKOGUSHI is a Japanese word that describes JEOL's philosophy of providing customers with complimentary technologies to advance their research & development programs. S. User Instructions. SAIF IIT Bombay’s Post SAIF IIT Bombay Your partner for sophisticated analysis like: HR-TEM, 2D-NMR, ESR, (HR, Orbitrap HR, GC)-LCMS, 3D TOF-SIMS, SAXS, TGA-DTA, DSC etc. Email: office. Sensitivity (1 pg. About us ; Past and Present Deans ; People at IRCC ; IRCC Advisory Committee ;3. Disclosure statement. 7665/7684/9820493406. At present there are fifteen (15) Sophisticated Analytical Instrument Facilities (SAIFs) spread across the country, which provide sophisticated analytical instruments to users are. ac. The authors also would like to thank CoEST, IIT Bombay for DTA analysis and nanoindenter (MEMS) Facility of IIT Bombay for usage of. T he Sophisticated Instruments Facility (SIF) was established in 1977 by the Department of Science and Technology, Government of India, initially under the Science and Engineering Research Council (SERC). The acylpyrazolones have been investigated for their biological and metal-coordinating abilities [469,470], as they show numerous beneficial effects in vitro and in vivo including antiinflammatory. IIT Bhubaneswar has signed MoU with Deutscher Akademischer Austauschdienst (DAAD) Solar Cooking Workshop. saif@iitb. Tech, M. in Residensial Address : C-23, Shivalik ,flat no. in. Sethulekshmi &, Amritanshu Shriwastav from: Department of: Environmental Science &, Engineering, Indian Institute of Technology, Bombay, Mumbai - 400. The compounds have shown to reveal excellent antibacterial and antifungal activity. Indian Institute of Technology (IIT), Patna was established in the year 2008. Other Links. The pages to links in this section will be accessible only to users in IIT Bombay Campus Network. Dr. Sreelekha P. It also approves induction of equipment from other sources that are to be operated under the control of SAIF. ac. Please. Back. student Ms. The purpose of establishing these centres is to provide data collection facility from sophisticated analytical equipments to. Registration Process: 1. Mass Range : 50-3200 amu. Registration : 1. Funding. SAIF IIT Bombay. ac. nano-scale resolution. industry [at] ircc. DST Apart from these SAIF's, It's also established some SIF's (Sophisticated Instruments Facility) centred on research groups with expertise in one or two specialized areas. Biosensors and Bioinstrumentation: This includes physical, chemical and biological sensing systems (macro and micro) for application in health (protein markers of diseases, bacteria, viruses, etc. (SAIF) INR 300: Medical Fee: INR 1,950: Hostel Rent: INR. At IIT Bombay, over 45 faculty members from 9 different departments/schools are working together in the broad areas of Nanotechnology, with support from various government agencies are private industries. CRNTS/SAIF, IIT Bombay Accessories 1. 2 cm-1. SAIF IIT Bombay. Mayuri Gandhi Dr. SAIF, Bose Institute, Calcutta. Indian Institute of Technology, Bombay Powai, Mumbai 400 076 MAHARASHTRA Phone: +91-22-2572 2545 Extn: 7795 (O), 2576 7048 (CEP / QIP / EFIP Office). ac. SOPHISTICATED ANALYTICAL INSTRUMENT FACILITY (SAIF) Indian Institute of Technology Bombay Online Registration for Sample Analysis Request Note : 1. ) NMR 600 MHz charges includes GST (Revised Charges W. IIT Bombay managed to stay on Third position in the NIRF with a score of 85. Acknowledgements We would like to thank SAIF, IIT Bombay for characterization tools used and DST for financial support. One can perform experiments in solid as well as in. Direct Infusion for Mass Analysis ( MS , MS /MS) UHPLC PDA Mass Spectrometer. Gandhi Jayanti at IIT Bhubaneswar. Md saif Raza. The authors express their sincere gratitude to sophisticated characterization facilities provided by SAIF, IIT Bombay, JNARDDC, Nagpur, and department of applied chemistry, VNIT, Nagpur. Phil/Ph. Indian Institute Of Technology - Bombay is the second-oldest campus of the Indian Institutes of Technology system and the largest National Institute in the state of Maharashtra. Ribbons for ID Card Printing Machine (AV1H000BD avansia Duplex Expert - EVOLIS) Security Section, IIT Bombay, Mumbai-400076. We haven't had any major hiccups except for the very first attempt when we were figuring out the mechanics. HRLCMS analytical facility. ) thanks the CSIR, New Delhi for a fellowship. ac. JM is thankful to V K Bajpai (08I17005) for pH measurement. Best of Luck. If the time exceeds for the specialized experiment as per user instruction, every additional experiment/time (1hour additional time) will be charged thereof with Rs. The authors are indebted to Prof. DST Apart from these SAIF's, It's also established some SIF's (Sophisticated Instruments Facility) centred on research groups with expertise in one or two specialized areas. This includes the well equipped Sophisticated Advanced Instrumentation Facility (SAIF) located in the IIT Bombay Campus. Mumbai Hearty Congratulations to: Hemen Gogoi, Bala Gopal Maddala (IIT B-Monash Research-Academy), Fariyad Ali &, Dr. This award recognises her research work on developing novel. 2012 Senior Researcher, India Science Lab, General Motors Global R&D, Aug. SAFE methodology is very efficient as I could conduct quiz for 140+ students in. 6d Report this post Report Report. The authors express their sincere thanks to the College Managing Board, Principal, and Head of the Department of Chemistry, VHNSN College for providing necessary research facilities. 4. Additional expertise in preparing 2D materials by mechanical, chemical, and electrochemical. Authors and Affiliations. Email Id : temlab@iitb. Senapathy Centre for Computing Resources (CC). Research on Nepalese medicinal plants are still limited to ethnopharmacological studies and qualitative phytochemical screening with a very few studies exploring their biological activities. ac. Alumni Association Office at Indian Institute of Technology, Bombay. in. Liquid chromatography / Mass Spectroscopy (LC / MS) is a technique which combines high performance liquid chromatography HPLC, a powerful analytical separation technique with mass spectroscopy ,a powerful analysis & detection technique. (SAIF) P. Mayura Chaubal, Technical Superintendent, (SAIF) CRNTS (ESEM, FEG-SEM Laboratory) E - mail: mayurasule@iitb. INDIAN INSTITUTE OF TECHNOLOGY DHARWAD BESIDE HIGH COURT BENCH DHARWAD KARNATAKAIn vitro antimicrobial activity of synthesized compounds was analyzed against some selected Gram-positive and Gram-negative bacterial and fungal species by disc diffusion technique. Single/Variational Listing. SAIF, Kolhapur. Microelectronics laboratory facilities. saif@iitb. Request for Permission to visit facilities in SAIF click here. Thanks to the Department of Chemistry, Faculty of Science, The Maharaja Sayajirao University of Baroda for infrastructural facilities. Time-of-Flight Secondary Ion Mass Spectrometry (TOF-SIMS) is a technique in which an ion beam (primary ion) is irradiated on a solid sample and mass separation of the ions emitted from the surface (secondary ions) is performed using the difference in time-of-flight (time-of-flight is proportional to the square root of the. Drona (IRCC Online Information Portal) Application Software Center (ASC) Main Administration Page. Department of Chemistry, IIT Guwahati; SAIF, IIT Bombay; AMRC, IIT Mandi for providing various analytical results. Please choose the correct category at the time of registration. Together, the team has designed the global first spiking neuro-synaptic. Contact Info. Mumbai Metropolitan Region. Join to view full profile. N. Congratulations to IIT Bombay's Ph. Other SAIFs in the country. Visiting Scientist: 2000-2002, Raja Ramanna Centre for Advanced Technology. S. Polymer science Energy science/Engg. in. Email Id : head. 80 GHz microwave frequency at. Back. Thermal Stability for quality assurance and safety purposes. esed[at]iitb. Select Category* : Academia (Other than Shivaji University)The instrument is equipped with a dual furnace made up of SiC to enhance the sample throughput. Head, Department of Civil Engineering, IIT Bombay, from March 2021 to till date. 6. Indian Institute of Technology, Delhi 1 year 6 months Graduate Research Assistant. Standard- Reference material (BaSO4) The Cary 100 is a cost-effective UV-visible spectrophotometer with a versatile set of accessories for routine laboratory work. Mar 2018 - Present5 years 5 months. Infrared data indicate. This. SAIF IIT Bombay’s Post SAIF IIT Bombay Your partner for sophisticated analysis like: HR-TEM, 2D-NMR, ESR, (HR, Orbitrap HR, GC)-LCMS, 3D TOF-SIMS, SAXS, TGA-DTA, DSC etc. Authors are thankful to SAIF-IIT, Bombay, for providing facility to analyze the nanoparticles by Transmission Electron Microscopy. Sophisticated Analytical Instrument Facility (SAIF), was Established at the Indian Institute of Technology, Bombay, in the year 1976 . Research professional with a Ph. Abstract. 022-25767691/2. Prime Minister Research Fellow (PMRF-2019) || Ph. Abhijeet Sangle, X-Ray Lab, Dept. person to SAIF office, IIT Bombay, Powai, Mumbai-400076. Indian Institute of Technology, Bombay Report this profile Experience Sophisticated Analytical Instrument Facility (SAIF) IIT Bombay. comThe transmission spectra of the boron carbide films deposited at argon flows 5 and 10 sccm by HWCVD using ortho-carborane were measured with a FTIR spectrometer (JASCO FT/IR-6100) in the spectral range of 4000 to 400 cm −1 with a resolution of 4 cm −1 is shown in Fig. Select SAIF Centre *: SAIF-NewDelhi SAIF-Kochi SAIF-Guwahati SAIF-Bangalore SAIF-Chennai SAIF-Roorkee SAIF-Kottayam SICART-V. Date: April 20th, 2022. ac. 2nd Floor, IRCC - SOM Building Indian Institute of Technology Bombay Powai, Mumbai. The authors are thankful to Mrs. IIT Jodhpur, Rajasthan - 342 037, India; Ravi Kumar from: Chemistry Department, IIT Bombay, Powai - 400 076 and, to: Prem Lama from: CSIR-Indian Institute of Petroleum. program. ) can therefore be detected by ESR. SAIF,CSIR-CDRI Lucknow provides primarily chemistry centric analytical facilities for researchers throughout India. Indian Institute of Technology, Kharagpur Report this profile. K. He also served Electron Microscopy facility at SAIF, IIT Bombay, for a year after completion of PhD work. /Fees-Spring 2020-21/2020] Acad/Spr. ac. IIT Bombay is the topmost preferred choice for Indian students in STEM fields such as computer science and engineering. The Times Higher Education World University Rankings 2019 includes more than 1,250 universities, making it our biggest international league table to date. ac. 1 st July 2017) (Select type of analysis, test/mode, enter no of samples and subsequent peak/hour) Estimation of ChargesSAIF at the Indian Institute of Technology Madras is equipped with sophisticated instruments to carry out spectral measurements, structure determination and chemical. I-32/2022-23 IIT Bombay invites applications from qualified Indian nationals including Persons of Indian Origins (PIOs), Overseas Citizens of India (OCIs), and foreign nationals for faculty positions at the level of Assistant Professor, Associate. The novelty of the present study is the surface modification of GNPs with a lipophilic surfactant at different ratios to achieve. 4mo Report this post Congratulations to: Rekha Bhagwansingh Rajput, Shweta Namdeo Jamble and, Rohidas Bhanudas Kale from: Department of Physics, The Institute of. This event is being organized on 22nd September by SAIF-CRNTS, IIT Bombay. ac. Contact : 022-2159 6866/89. 2016, Dept. Connect Vikram Nanda Bangalore Urban. Sophisticated Analytical Instrument Facilities (SAIF) Scheme. Head, SAIF-CRNTS Indian Institute of Technology, Bombay Sep 2016 - May 2018 1 year 9 months. LCMS with library (Plant extract or Impurity Profiling or Metabolite Identification or Degradation studies or Environmental samples) A gas-chromatograph coupled with mass spectrometer (GC-HRMS) is a combined analyzer that has a superior ability in analyzing organic compounds qualitatively and quantitatively. Authors are thankful to SAIF, IIT Bombay for FEG-SEM, TEM and FTIR analysis. Ravindra Gudi +91-22-25767099 : 2 February 2022. 19 Oct 2023. They executed: HR-TEM (High-Resolution - Transmission Electron Microscopy) Analysis on: Technai G-2 working @ 300 kV in the SAIF IIT Bombay Lab. Successfully completed number of industrial projects on Biosimilarity for peptides like Liraglutide. Plantation Drive at IIT Bhubaneswar. Donations made via the IIT Bombay Heritage Foundation (IITBHF) , which is a 501(c)(3) organization, are generally tax-deductible under US tax law. CRNTS/SAIF IIT Bombay. (SAIF), formerly known as the Regional Sophisticated Instrumentation Centre (RSIC), was established at the Indian Institute of Technology,. (KUBIIC) and Department of Chemistry, University of Kerala, Kariavattom Campus; SAIF, IIT-Bombay, Kochi and Chennai; Department of Chemistry, Mahatma Gandhi College, Thiruvananthapuram; NIIST, Thiruvananthapuram, Kerala for. Engg. ac. At IIT Bombay, over 45 faculty members from 9 different departments/schools are working together in the broad areas of Nanotechnology, with support from various government agencies are private industries. Requisition letter addressing Head, SAIF/CRNTS along with completed form and DD of required amount should be send by post or submitted in person to SAIF/CRNTS office, IIT Bombay, Powai, Mumbai-400076. It approves and forwards progress report of SAIF to DST. Managed material sponsorship by origin corporation ltd. We are equipped with a Thermo Scientific ELEMENT XR, a high performance, double focusing magnetic sector field ICP-MS. Glen D. ) can therefore be detected by ESR. Dr Vasanthacharya, SSCU, Indian Institute of Science, Bangalore, for magnetic susceptibility measurements and SAIF, IIT, Madras. D Student (Joint Doctoral degree) at the Indian Institute of Technology, Bombay and Nanyang Technological University, Singapore Mumbai. 23 DEPARTMENTS. . Graphical Abstract. in. (Formerly SAIF Partners) Bengaluru. IIT Patna is an Institute of National Importance. | Learn more about Md saif Raza’s work experience, education, connections & more by visiting their profile on LinkedIn. Once we receive the requisition letter and advance payment, your appointment will be scheduled as per the queue. 103, Near Central Library,. The Demand Draft should be in favour of "The Registrar, IIT Bombay" Division Functionaries. Suneet Dwivedi for providing XRD facility of Nano Phosphor Application Centre of the University of Allahabad, Dr. The authors wish to thank VGST, Department of Science and Technology, Government of Karnataka for the “CESEM” award grant No. (DST), Government of India has sponsored a Sophisticated Analytical Instrumentation Facility (SAIF) at IIT Bombay to provide a wide range of modern analytical instruments for use. International callers please use (+91) for the country code for India, (22) as the city code for Mumbai. منشور SAIF IIT Bombay SAIF IIT Bombay Your partner for sophisticated analysis like: HR-TEM, 2D-NMR, ESR, (HR, Orbitrap HR, GC)-LCMS, 3D TOF-SIMS, SAXS, TGA-DTA, DSC etc. He received PhD degree from IIT Bombay, and did postdoctoral research at Tamkang University, Taiwan, for 2 years and University of Waterloo, Canada, for 4 years. Podsiadly, M. 91-22-2576 7030 / 7039. - Developed an android application to send SMS based instructions for an IoT device. Mohammad Saif Student at Indian Institute of Technology, Bombay Mumbai, Maharashtra, India. Disclosure statement. Please use. The images can be resolved over a fluorescent screen or a photographic film. (SAIF) Tata Centre for Technology and Design (TCTD) Tata Teleservices.