Gurugram mein RERA compliance: Kya asli protection milti hai?

Did a site visit to Adani Oyster Greens Phase 1 last week. Builder JMK Real Estate And Builder ka track record kaisa hai, especially RERA compliance ko lekar? Kids moved out, so looking for a smaller flat. Builders ka legal history kaise check karein properly? Aur agar delay ho toh RERA complaint kitni effective hoti hai Gurugram mein?