Faridabad investment: Is the infrastructure boom already priced in?

Budget finalised, loan pre-approved — now stuck on which sector. I'm looking at Faridabad for my first home, maybe a 2BHK. My budget is around ₹70-80L. My parents keep saying prices have already shot up, especially in Neharpar (Sectors 75-89) because of the Delhi-Mumbai Expressway and FNG. Is it still a good time to buy, or has Faridabad peaked for appreciation? I'm hoping for some decent ROI over 5-7 years, not just end-use. Which sectors do you guys think still have good growth potential? Sector 14 and 15 seem too high for my budget now. Should I look more towards Greater Faridabad or are there hidden gems closer to the Metro (Violet Line)? What about builders like BPTP or Puri Constructions in these areas? Honestly not sure if the infrastructure hype is already priced in.