Lucknow, May 27 (PTI) In a crackdown on anti-national activities operating through digital platforms, the Uttar Pradesh Police has dismantled a sleeper cell linked to Pakistani gangster Shahzad Bhatti, officials said on Wednesday. According to ADG, Law and Order, Amitabh Yash, a joint operation by the UP Anti-Terrorism Squad (ATS) and the Special Task Force (STF) led to the arrest of four operatives in Saharanpur on Tuesday. The accused are: Mahkab (resident of Saharanpur), Gagandeep alias Guri