When the revolt spread in the Deccan, the Government of Bombay was initially unwilling to see it as anything serious. But the Government of India, worried by the memory of 1857, pressurised the Government of Bombay to set up a commission of enquiry to investigate into the causes of the riots. The commission produced a report that was presented to the British Parliament in 1878.This report, referred to as the Deccan Riots Report, provides historians with a range of sources for the study of the riot. The commission held enquiries in the districts where the riots spread, recorded statements of ryots, sahukars and eyewitnesses, compiled statistical data on revenue rates, prices and interest rates in different regions, and collated the reports sent by district collectors.

So, the correct option is [1].