India, Oct. 17 -- The Slum Rehabilitation Authority's (SRA) notice to the developer of a luxury tower built on the site of yesteryear actor Mala Sinha's bungalow in Bandra West, over alleged deviations from approved plans for permanent transit camp (PTC) tenements, has brought attention to one of the latest businesses quietly unfolding in Mumbai's real estate market.

Once viewed primarily as a regulatory requirement in slum rehabilitation projects, PTCs are increasingly becoming an important tool for developers seeking to unlock development potential and make redevelopment projects commercially viable.

PTCs are buildings constructed by private developers to accommodate project-affected persons (PAPs). Developers hand over these units fr...