Rajkot first home: Builder delays aur RERA?

Ansal API ka Rajkot mein RERA compliance record kaisa hai? I'm checking out Ansal Aastha Mig Zone on Kalawad Road, but really worried about project delays. Kya RERA mein builder default hone pe actual legal options milte hain? Aur builder ka legal track record properly kaise check karoon before signing anything?