Itna bhi haal bura nahi hai...but yes...you have to be on your toes in Delhi and yes, specifically, when you are in the NCR region, you have to be very careful of Real estate agents, doctors and home developers....
I was cheated by a furniture contractor...the contract was for Rs 55,000 and i paid him advance Rs 10K advance like a fool...he never showed his face to me after that!!