On February 21, 1985, Raja Man Singh and two others were killed in a police encounter. The daughter of Raja Man Singh, Deepa Singh and her husband Vijay Singh filed a FIR in Deeg police station in Rajasthan accusing the policemen of the murder.
The CBI had investigated the matter and filed a chargesheet in the Rajasthan High Court. Later, the Supreme Court transferred the case to Mathura in 1990.The trial, which went on for 35 years, witnessed over 1,700 hearing dates while 25 district judges were changed.