City & Industrial Development Corporation [CIDCO] — Occupancy Certificate

I have bought a inventory in marathon nexzone panvel in the month of January 2021. The builder informed that the construction will be completed and occupancy certificate will be received by sept 2021. However, it has been 6 months after the deadline commited, still have not received OC. This has lead to mental stress and monetary loss in form of loan interest and rent please take up with builder to resolve the issue.