1. All these miscellaneous appeals are heard together, as have been admitted primarily on the common questions of law.

2. The appellants herein are the Builders / Colonizers / Developers. The private respondents who purchased the plots filed a complaint before the Real Estate Regulatory Authority (for short RERA). According to the private respondents, they purchased plots in a project known as Anandam World City, Kachna on different dates. It was alleged that while they wanted to construct the houses, it was objected by the builders and a demand was made for infrastructure developments fees. Apart from that, the development work in the Colony, i.e. Walkway, Fire - station, Open Area, Temple, Development of Pond, Garden, Other amenities of the Retail & Business Shops, Hospital, Amphitheater, Supermarket, Multiplex, ATM, Library, Doctor, Kids' Play Area was no