Question

When was the telephone line from calcutta and agra?

Answer 1

◀️A year later, British India's first telegraph line and office was opened in October 1851, between Calcutta and Diamond Harbour along the busy shipping route on the Hooghly. By March 1854, there were 800 miles of telegraph lines between Calcutta and Agra and this was further connected to Bombay and Madras.

Answer 2

Answer:

same answer of this question.... be happy always happy