A fresh extortion case was registered by Mumbai police against former city chief and senior IPS officer Param Bir Singh on Friday.
Suspended Mumbai Police officer Sachin Waze has also been booked by the police in the case.
Based on the complaint filed by a builder, the case was registered against the two at the Goregaon police station in Mumbai last night.
This is the fourth such case against Singh and first against Waze.
The complainant alleged that he had spoken to Waze at length about some BMC contracts which the latter was trying to extort from. The complainant claimed it was the same contract that Waze later tried to claim that Maharastra minister Anil Parab had asked him to extort from.