First Telephone in India or First call in India is having long history i.e. more than 125 Years which we will try to explore here. Alexander Graham Bell patented the first Telephone instrument capable of practical use in 1876. This method was used in the first commercial instrument developed by Bell in 1876. In 1878, the first telephone exchange was established at New Haven. In 1880, two Telephone Companies viz. The Oriental Telephone Company Ltd. and The Anglo-Indian Telephone Company Ltd. approached the Govt. of India for permission to establish Telephone Exchanges in India. The permission was however refused on the grounds that the establishment of Telegraphs was a Government monopoly and that the Government itself would undertake the work in the event of sufficient demand. By 1881, Govt. of India changed their earlier decision and licence was granted to the original Oriental Telephone Company Limited of England for opening Telephone Exchanges at Calcutta, Bombay, Madras, Karachi and Ahmedabad.
28th January, 1882, is a Red Letter Day in the history of Telephone in India. On this day Major E. Baring, Member of the Governor General's Council declared open the Telephone Exchange in Calcutta, Madras and Bombay. The exchange at Calcutta named "Central Exchange" was opened at third floor of the building at 7, Council House Street. On 30-06-1882, the Central Telephone Exchange had 93 number of subscribers. This is how telephone started in Indian, but to whom we provide the credit for this call, England but Development and enhancement Credit definitely Goes to employees of BSNL( Formally Department of P&T OR DoT).