The FIR against Raja Bhaiya mentions murder, criminal conspiracy and other charges under sections 147, 148, 506, 302 and 120B of the Indian Penal Code.
PTI adds: The Centre on Thursday handed over to CBI the probe into the killings of Pratapgarh Deputy Superintendent Police Zia-ul-Haq and two others following a request from the Uttar Pradesh government.
The name of 44-year-old former UP Minister Raghuraj Pratap Singh alias Raja Bhaiya, who has a criminal record and has been jailed in the past, figures in the FIR lodged by the slain officer's wife Parveen Azad in which he has been accused of criminal conspiracy.