Gurugram property hunt: Builder's legal history is my current headache

Since January I've been shortlisting flats in Gurugram, fed up of renting yaar. Dekh raha hoon Dwarka Expressway par, Ansal API ka bhi ek project dekha tha. But builder ka legal track record kaise check karein, ye samajh nahi aa raha. RERA website pe sirf registration dikhta hai, par uske peechhe kya issues hain, woh kaise pata chale? Title verification steps bhi log skip kar dete hain, I don't want that mistake. Koi batao Gurugram mein authentic way to verify builder history and legal clearings. Bahut dimaag kharab ho gaya hai.