From the archive record
Telecommunications in India began with the introduction of the telegraph. The Indian postal and telecom sectors are one of the worlds oldest. In 1850, the first experimental electric telegraph line was started between Calcutta and Diamond Harbour. In 1851, it was opened for the use of the British East India Company. The Posts and Telegraphs department occupied a small corner of the Public Works Department, at that time. The construction of 4,000 miles (6,400 km) of telegraph lines was started in November 1853. These connected Kolkata (then Calcutta) and Peshawar in the north; Agra, Mumbai (then Bombay) through Sindwa Ghats, and Chennai (then Madras) in the south; Ootacamund and Bangalore. William O'Shaughnessy, who pioneered the telegraph and telephone in India, belonged to the Public Work