Top 10 ISPs in India

1 Bharat Sanchar Nigam Ltd.
2 Mahanagar Telephone Nigam Ltd.
3 Reliance Communications Infrastructure Limited
4 Bharti Airtel Ltd.
5 Hathway Cable  & Datacom Pvt. Ltd
6 You Broadband & Cable India Private Limited(YOU Telecom India Pvt. Ltd).
7 Tikona Digital Networks Pvt Ltd
8 Tata Communications Internet Services Limited (VSNL Internet Services Ltd)(DIL Internet Ltd)
9 Sify Technologies Ltd.
10 Data Infosys Ltd.

source: TRAI