First-time buyer in Delhi, confused between two projects

Spent the whole Sunday checking out options in New Delhi. Fed up of renting yaar, finally taking the plunge. Landlord raised rent again, ab bas. Dekh raha hoon Angels Luxurious Residency aur CGHS Gauri Ganesh Apartment. Angels ka price range theek hai, but carpet area kitna efficient hai? CGHS Gauri Ganesh ka TCO justify karta hai kya? Maintenance, registry sab mila ke, which one better for a first-time buyer?