Noida Extension: Resale market ka sach dhoondh raha hoon.

Been looking for 8 months now and it's getting exhausting. I work in real estate, but buying for myself feels totally different. Noida Extension mein investment ka soch raha hoon, especially Sectors 137 ya 150 mein. Builders like Godrej, ATS, Gaursons ke projects ka resale market ka kya scene hai, guys? Marketing wale bolte hain 5-10% appreciation annually, but is that actually true for *resale* on paper? Agar 3-5 saal baad exit karna ho, toh kitna time lagta hai flat bechne mein? Aur kya prices mil jaati hain jo expect karte hain, ya discount dena padta hai? Not sure agar market abhi bhi that hot hai resale ke liye. Kya kisi ne recently apna 2BHK ya 3BHK becha hai idhar? Any red flags?