The Special Investigating Team (SIT) of Lucknow Police yesterday filed the chargesheet in a court here, a senior officer said.
A Chitrakoot-based woman corporator had alleged that Prajapati and his aides had raped her and attempted to molest her minor daughter in 2014.
An FIR was registered on February 17 against Prajapati and six others on a directive of the Supreme Court.
After being on the run for nearly a month, the 49-year- old Samajwadi Party leader was arrested on March 15 and sent to jail. The six other accused had been arrested earlier.