What's the realistic negotiation room for 3BHKs in Ghaziabad?

What's the realistic negotiation room for 3BHKs in Ghaziabad right now? I've been eyeing properties, specifically around Raj Nagar Extension and even some resale in Krishna Vihar, aiming for a ₹70-80L range. From my past investments, secondary market deals usually offer better flexibility than direct builder sales, even with someone like T AND T INFRAZONE PVT LTD. But with the Delhi-Meerut Expressway's impact, is it still possible to push for a 5-7% discount on the total acquisition cost, factoring in stamp duty and all? Or are sellers firm now?