chennai complaints by buyers to the tamil nadu real estate regulatory authority tnrera have brought noncompletion of six housing projects in the peripheries of the city to fore which have not been registered with the realty regulator incomplete ongoing housing projects that do not possess completion certificate must register with tnrera official sources said notices were issued to six promoters following complaints from buyers over delay in handing over their apartments of these three housing projects are in padur and tiruporur on old mahabalipuram road omr falling under the limits of the directorate of town and country planning dtcp the official said meanwhile the tnrera has sent missives to all the projects that obtained planning permission from the cmda since 2015 the move will ascertain how many promoters have not received completion certificates and yet to register with the real estate authority