The Mumbai Police's SIT, probing "irregularities" worth Rs 12,024 crore in various works undertaken by the city civic body in the past, visited the BMC headquarters on Monday where they met with senior officials and examined documents, an official said.

The Special Investigation Team (SIT) was formed after the Comptroller and Auditor General of India (CAG) had flagged alleged irregularities in various works of the Brihanmumbai Municipal Corporation.