Ghaziabad builders claim 'no negotiation' is a bluff.

₹78 lakh for a 2BHK in NH-24, near TGB Group projects – is this price actually negotiable in Ghaziabad? Kids have moved out, so we need something manageable. Builder bol raha hai no negotiation, but I'm not sure. Kya hidden charges bhi hote hain possession ke time pe? Kitna push kar sakte hain realistically for a better deal?