According to the CBI, the corruption case against Sweety Singh involves a complaint filed by Patil.

Patil had alleged in his complaint that Sweety Singh had demanded a bribe of Rs.30 million, for withdrawing an atrocities case under the SC/ST act, filed against Patil by a group of local conservancy workers employed by him.

The 100-odd conservancy workers who work for Patil -- a garbage collection contractor with Nashik Municipal Corporation -- lodged the case since he was allegedly not paying them their wages and had also taken a bank loan of Rs.100 million (Rs.10 crore) in their name.

Sweety Singh, reported to be in touch with the aggrieved conservancy workers, allegedly approached Patil with an offer to withdraw the case against him in return for Rs.30 million.

After some haggling, Patil promised to cough out the sum but also informed the CBI about Singh's demands.

CBI sleuths laid a trap for Singh and caught him in New Delhi Thursday evening when he was allegedly accepting the first instalment of the agreed amount from Patil.