when was first telegraph line started in india
Telecommunications in India 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,[16] at that time.
Ticker tape Ticker tape stock price telegraphs were invented in 1867 by Edward A. Calahan, an employee of the American Telegraph Company.[1]