CBI gave a clean chit to former UP Minister Raghuraj Pratap Singh alias Raja Bhaiya in connection with the murder of Kunda DSP Zia-ul Haq. Also, CBI filed a "technical" closure report in the related FIR. Raja Bhaiya had to resign from the Cabinet on March-4 after Haq's wife Parveen Azad accused him of being involved in the DSP's murder.