Bartronics India Ltd, Bharat Sanchar Nigam Ltd,  Bharti Airtel Ltd and Genus Power Infrastructures Ltd are some of the top Electronics and IT Companies in India as per the survey conducted by Electronics For You. Most of these firms offer internship program for candidates from the field of Technical studies.  

• HBL Power Systems Ltd
• Bartronics India Ltd
• Idea Cellular Ltd
• ITI Ltd
• Persistent Systems Ltd
• Redington (India) Ltd
• Samsung India Electronics Pvt Ltd
• Sasken Communication Technologies Ltd
• JCT Electronics Ltd
• KPIT Cummins Infosystems Ltd
• Acer India Pvt Ltd
• Amara Raja Batteries Ltd
• Bharat Electronics Ltd
• Bharat Sanchar Nigam Ltd (BSNL)
• Cisco Systems India Pvt Ltd
• Cranes Software International Ltd
• Datamatics Global Services Ltd
• Prithvi Information Solutions Ltd
• Canon India Pvt Ltd
• Aricent Technologies (Holdings) Ltd
• Dell India Private Ltd
• Delta Energy Systems (India) Pvt Ltd
• Educomp Solutions Ltd
• EMC India
• Eveready Industries India Ltd
• Exide Industries Ltd
• Finolex Cables Ltd
• ZTE Telecom India Pvt Ltd
• XL Telecom & Energy Ltd
• 3i Infotech
• Avaya Global Connect Ltd
• Bharti Airtel Ltd
• Bharti Teletech
• CMC Ltd
• Genus Power Infrastructures Ltd (formerly Genus Overseas Electronics Ltd)
• Geodesic Ltd
• Geometric Ltd
• GTL Ltd
• HCL Infosystems Ltd
• Hewlett-Packard India
• Hexaware Technologies Ltd
• Hinduja Global Solutions Ltd (formerly HTMT Global Solutions)
• Honeywell Automation India Ltd
• Huawei Technologies India Private Ltd
• IBM India Pvt Ltd
• iGATE Global Solutions Ltd
• Infosys Technologies Ltd
• Infotech Enterprises Ltd
• Intex Technologies (India) Ltd
• HCL Technologies Ltd
• Lenovo India
• LG Electronics India Pvt Ltd
• Mahanagar Telephone Nigam Ltd
• Mascon Global Ltd
• Microtek International Pvt Ltd
• MindTree Ltd
• MIRC Electronics
• Moser Baer India Ltd
• MphasiS
• NIIT Ltd
• NIIT Technologies Ltd
• Mastek Ltd
• Nokia India Pvt Ltd
• Northgate Technologies Ltd
• Numeric Power Systems Ltd
• OnMobile Global Ltd
• Megasoft Ltd
• Opto Circuits (India) Ltd
• Paramount Communications Ltd
• Patni Computer Systems Ltd
• Polaris Software Lab Ltd
• Tech Mahindra Ltd
• Vodafone Essar Ltd
• Oracle Financial Services Software Ltd (formerly i-flex Solutions Ltd)
• Zensar Technologies Ltd
• Zylog Systems Ltd
• Subex Ltd
• R Systems International Ltd
• Rashi Peripherals Pvt Ltd
• Rolta India Ltd
• Salora International Ltd
• Samtel Color Ltd
• Reliance Communications Ltd
• Savex Computers Ltd
• Siemens Ltd
• Sify Technologies Ltd
• Sonata Software Ltd
• Sony India Ltd
• Sterlite Technologies Ltd
• Supertron Electronics Ltd
• Tata Communications (formerly VSNL)
• Tata Consultancy Services
• Tata Teleservices (Maharashtra) Ltd (TTML)
• Teledata Informatics
• Tulip Telecom Ltd
• Videocon Industries Ltd
• Wipro Ltd
• Zenith Computers Ltd
• Zicom Electronic Security Systems Ltd
• Tata Elxsi Ltd

Those who wish to do internship program in any of the above listed firms can visit the official website of the firm concerned so as to collect more details.