3BHKs in Whitefield are just not worth the extra cost for rental returns.

Honestly, I'm so fed up of renting; landlord raised rent again. Finally taking the plunge! My budget's around ₹1.2 Cr. Should I go for a 2BHK in Whitefield or Bellandur for better rental yield, or push for a 3BHK in Sarjapur Road? The EMI vs rent math is killing me. What are people actually seeing for rental yields here? Are those 4% claims real?