Greater Noida mein all-in cost ka kya scene hai?

Under-construction risk is completely overblown in my opinion, I'm finally buying in Greater Noida. Landlord ne phir rent badha diya, done with renting. Looking at 2BHKs in Sector 110, Noida Extension, Metropark projects bhi. But all-in cost ka breakdown bahut confusing hai. Builder bas basic price batata hai. Stamp duty, registration, PLC, parking... kitna extra lagta hai? Hidden charges se kaise bachein?