Confused by Greater Noida's infra promises

Okay, I'll be honest — Greater Noida infra projects ka impact samajh nahi aa raha. Jewar Airport aur FNG Expressway se Sector 134 mein kitna real appreciation expected hai? Already prices badh gaye hain, but kya yeh sustainable hai? Projects ke completion timelines kitne realistic hain? Aur koi affordable investment window bachi hai in corridors ke paas, from an ROI perspective?