A cheating case has been registered by the police in Mumbai against well-known jewellery retail chain TBZ on the complaint of a city-based jeweller over alleged dues of Rs 6.57 crore, an official said on Tuesday.

The FIR was lodged against two directors of the firm last week on the complaint of jeweller Harsh Susaniya, who has told the police he had done work worth Rs 6.57 crore for the retail chain but was never paid, the official informed.