The buyer can only approach one of the two forums to get a remedy if project or possession is delayed. There is a comparison between remedies available under RERA and Consumer Protection Act and the forum needs to be chosen appropriately. Although, the consumer or the customer has both remedies available to him, he can approach only one forum at any given point of time. Choosing between RERA and NCDRC depends upon the remedy you seek.
Thus, if you have a case pending in NCDRC, you cannot approach RERA simultaneously.