The correct answer is B. VSNL.
VSNL was the first private internet service provider in India. It was founded in 1986 as Videsh Sanchar Nigam Limited, a wholly
owned subsidiary of the Department of Telecommunications, Government of India. In 2002, it was privatized and renamed Tata Communications Limited.BSNL is a state-owned telecommunications company in India. It was founded in 2000 as a merger of the Department of Telecommunications’ telecommunications services. It is the largest telecommunications company in India, with over 250 million subscribers.
Airtel is a multinational telecommunications company headquartered in New Delhi, India. It is the second largest telecommunications company in India, with over 300 million subscribers.
Vodafone is a multinational telecommunications company headquartered in London, England. It is the third largest telecommunications company in India, with over 200 million subscribers.
Internet services were launched in India on 15th August, 1995 by VSNL. The first internet connection in India was established between VSNL and Sprint Corporation in the United States.