In 2007, Indian Police Service officer Rajnish Rai investigated the 2005 death of Sohrabuddin Sheikh under directions from the Supreme Court of India. On April 27, 2007, his investigation led to the arrests of Gujarat police officers D. G. Vanzara, R. K. Pandian, and Dinesh M. N. without approval from then-state Home Minister Amit Shah. Rai also recorded that alleged police victim Tulsiram Prajapati had feared officers would kill him. The source attributes to Rai allegations that the cases involved staged encounters and political protection, while noting that these claims were contested rather than established as fact in the source.
As chief vigilance officer at the Jaduguda uranium mine in 2015–2017, Rai reported alleged procurement corruption in contracts worth approximately ₹970 crore between 2008 and 2015. He said eligible lower bids were rejected over paperwork technicalities while comparable errors by a higher bidder were overlooked. He also reported the alleged killing of two National Democratic Front of Boroland members by security forces on March 30, 2017. After sending his complaints to the Central Bureau of Investigation, he was transferred in June 2017, charged by the Home Ministry with improperly conducting an investigation, suspended after seeking early retirement in August 2018, and became involved in an unresolved dispute over whether he had legally retired or abandoned his post.