Can you give me name of some best companies are situated in India that offer internship training for Electronics and Telecommunication course ?

Here I am giving you name of some best companies are situated in India that offer internship training for Electronics and Telecommunication course .

Core companies :
ISRO -Indian Space Research Organization
BEL -Bharat Electronics Limited
ECIL -Electronics Corporation India Limited
GAIL -Gas Authority of India Limited
HAL -Hinustan Aeronautics Limited
NTPC -National Thermal Power Corporation
ONGC -Oil and Natural Nas Commission Limited
DRDO -Defence Research and Development Organization
BSNL JTO -Bharat Sanchar Nigam Limited Junior Telecom Officers
SAIL -Steel Authority of India Limited
BSNL

Private Electronics and Telecommunication companies :
CMC Ltd
Amara Raja Batteries Ltd
Dell India Private Ltd
Delta Energy Systems (India) Pvt Ltd
Educomp Solutions Ltd
EMC India
Exide Industries Ltd
Bharti Teletech
Bartronics India Ltd
Cranes Software International Ltd
Datamatics Global Services
Eveready
Bharti Airtel Ltd
Industries India Ltd