1) you have to issue a legal notice to refund Rs 2.25 lakhs with interest at 15%as per agreement within period of 15 days from date of receipt of notice
2) if developer does not pay file complaint before consumer forum and seek refund with interest
3) also seek compensation for mental torture undergone by you .
4) in the alternative you can file summary suit in district court for recovery of Rs 2.25 lakhs with interest at 15%pa
5) however if you file a summary suit you have to pay court fees on the claim amount .