Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 130,456 pages of information and 207,583 images on early companies, their products and the people who designed and built them.
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1845 Company provisionally registered.
1849 August 1st. Incorporated by an act of the British Parliament with a share capital of 500,000 pounds.
1849 August 17th. Entered into a contract with the East India Company for the construction and operation of an experimental line, from Bombay to or near Callian, with a view to an extension thereof to Malsej Ghaut. 
1853 April 16th. At 3:35 pm, the first passenger train left Bori Bunder (formerly Boree Bunder) in Bombay for Thane (formerly Tannah) pulled by the engine 'Lord Falkland' manufactured by the Vulcan Foundry. The train took fifty-seven minutes to reach Thane and covered a distance of 21 miles. Three locomotives named Sultan, Sindh and Sahib pulled the 14 carriages carrying 400 passengers on board.
1857 Chief engineer was Robert Maitland Brereton
1866 Accident. '...a frightful accident on the Great Indian Peninsula Railway, at the reversing station of the Thull Ghaut, which resulted in the instant death of six or seven persons, and the serious injury of another. Just before coming to the scene of the accident there is a declivity varying from 1 in 100 to 1 in 37. All that is known of the circumstances is that the train, as it came down the gradient, obtained tremendous velocity, rushed past the station so rapidly that nothing but its momentary whirl was heard, dashed through a barrier at the end of the rails, and literally leaped down the precipice beyond. One of the guards jumped off and was terribly injured; but the other poor fellows who were in charge stuck to their posts and were killed in the crash. Scanlan, the guard who jumped off, is not considered to be in immediate danger, but his jaw being broken, he is unable to speak.'
1868 Route kilometerage was 888 km
1870 Route kilometerage was 2,388.
1870 March 7th. It became possible to travel directly from Bombay to Calcutta when the Great Indian Peninsula Railway connected with the East Indian Railway.
1900 June 30th. The assets of the GIPR were purchased by the Government and merged with those of the Indian Midland Railway into a "new" GIPR, managed by the old company.
1925 July 1st. The company's management was taken over by the Government.
1951 November 5th. Incorporated into the Central Railway.