INA Market flats: what's the actual resale scene?

INA Market keeps coming up every time I shortlist something. Fed up of renting, I'm seriously looking to buy a 2BHK around ₹1.5-2 Cr. Prices here seem really high, especially for older properties. Is there any negotiation room, or are sellers just firm on their asking price? Honestly, I'm also thinking about the investment potential. How easy is it to sell later, say in 3-5 years? I heard checking circle rates versus actual transaction values can give negotiation leverage. Has anyone tried this successfully in INA? That's my current hack, hope it helps someone.