This discussion addresses a query regarding the subdivision of an approved plot in Tamil Nadu. The original owner subdivided a 2400 sq ft plot, selling 1800 sq ft to the enquirer in 1990, with the MMDA approving the irregular subdivision and building plan. Now, the remaining portion has been officially subdivided by revenue authorities, prompting the enquirer to ask if their portion is also considered subdivided and how to obtain a new survey number for it.