NRI's legal worry: Gurgaon builder track record

Researched NKV Groups' Rudraa Aroma online from Dubai, and honestly, builder ka track record check karna kitna tough hai remote se. I'm worried about legal clauses in the builder-buyer agreement; suna hai bahut tricky hote hain. RERA complaints work bhi karti hain ya bas paperwork hai? Mera main concern hai ki investment secure rahe, exit options clear hon. Gurgaon mein koi experienced hai jo bata sake NKV Groups ka legal history kaisa hai? Ya aise cases mein kya due diligence steps lene chahiye remotely?