The Thane police have issued a lookout notice against senior Maharashtra IPS officer Param Bir Singh in connection with an extortion case, an official said on Thursday. The notice was issued in the extortion case registered at the Thane Nagar Police Station against Singh, a former Mumbai Police Commissioner, and 27 others on July 30 on a complaint of businessman Ketan Tanna.

A lookout notice is issued to prevent a person from leaving the country. Besides Singh, who earlier served as the Thane Police Commissioner, the extortion FIR names several other police officers. These include the then Deputy Commissioner of Police Dipak Deoraj, Assistant Commissioner of Police Nivrurti Kadam, the then Anti Extortion Cell (AEC) senior Inspector Pradeep Sharma and Inspector Rajkumar Kothmire, the official said.