I purchased a flat from a builder in Punjab who is more than 3 years late in delivering the unit. I want to file a compensation claim with RERA. My builder-buyer agreement was signed in January 2017 while the unit was booked in 2016 before RERA was introduced. The agreement is on a stamp paper but it is not registered. Can I file a RERA claim under such an agreement? Also, in case, i register the agreement now, will its terms and conditions come into effect from the date of signing ( 2017) or date of registration (present) Thank you