Police have arrested Ashok Kumar Sao, an iron rod trader based in Patna, for allegedly hiring a contract killer to kill businessman and BJP leader Gopal Khemka, News18 reported. The arrest was made after police carried out a raid along with another accused, Umesh Yadav, in Udayagiri Apartments on Monday. Yadav reportedly accepted 'supari' (contract) worth ₹3.3 lakh from Sao.