Ansal Aastha Mig Zone agreement dekh ke tension ho rahi hai

2 saal se property search kar raha hoon Rajkot mein, finally Ansal Aastha Mig Zone mein ek 2BHK pasand aaya. Par builder-buyer agreement dekh ke darr lag raha hai. Itne clauses hain jo sirf unko favor karte hain. Koi batao RERA registration kaise check karte hain properly? Aur agar future mein builder delay kare, toh RERA complaint file karna worth it hai kya? Ya sirf papers pe hi effective hai? My parents keep saying sab builders ek jaise hain, ab samajh nahi aa raha.