Send notice to builder and impose breach on his part and claim refund.

If builder refused than appraoch RERA.

Does agreement for sake mention the construction to be done by builder till date 

2) builder has time to complete construction till 2025 

3) if he fails to hand over flat on due date then cancel booking and seek refund of money paid by you with interest 

4) if you cancel now you won’t get full refund 

- As per the RERA Act, if the builder is delaying in construction & delay in possession, then the builder will have to pay 10% interest on the value of the property for delayed possession of flats.

- Hence, if till date nothing is done as per promise of the builder , then you can cancel the agreement due to his fault and you are liable to get full refund of paid amount with 10 percent interest. 

- You can send a notice to the said builder for the cancellaiton of the booking and refund of the amount with interest

- If not refunded , then file a complaint before the consumer forum against the builder , and thereby also claim compensation for mental harassment. 

You are cancelling the booking by yourself.

As per the agreement the builder will deduct 10% of the booking amount on cancellation of the sale agreement

For refund you may have to wait for the builder to return until h finds a new buyer to buy your property. 

However this will not prevent you from issuing a legal notice to cancel the booking due to the reasons you rely upon and demand full refund of the amount with interest.

Let him give a reply after which you can decide about legal course of action on it

When you book a flat in Maharashtra, especially in cities like Pune, the builder's obligations and the rights of the purchaser are regulated by the Maharashtra Real Estate Regulatory Authority (MahaRERA) under the Real Estate (Regulation and Development) Act, 2016.

1. 
   Delay in Construction:

   • If the builder hasn't initiated any construction work since November 2021, it's a clear case of delay. Considering the possession date is December 2025, a significant delay has already occurred.

2. 
   Cancellation and Refund:

   • As per MahaRERA provisions, if the builder fails to complete or hand over possession of the property as per the agreed timeline, the buyer has the right to demand a full refund along with interest.

3. 
   Deduction by Builder:

   • While the builder might have certain terms in the agreement regarding cancellation charges, a 10% deduction might not be justified given the clear delay in construction on the builder's part. However, the exact terms of the agreement would need to be reviewed.

4. 
   Interest on Paid Amount:

   • As per RERA provisions, if the builder fails to meet the timeline, not only is the buyer entitled to a full refund but also compensation, which includes interest on the amount paid.

5. 
   Steps to Take:

   • Firstly, communicate your concerns with the builder, highlighting the delay and your intent to cancel.
   • If the builder doesn't cooperate, you can file a complaint with MahaRERA, seeking a refund with interest due to the delay.
   • It might be beneficial to consult with a legal expert familiar with real estate matters in Maharashtra to guide you through the process and understand the terms of your agreement.

Remember, RERA provisions are designed to protect the interests of homebuyers and ensure transparency and accountability on the part of builders and developers.

Dear client,  in Maharashtra, the Maharashtra Real Estate Regulatory Authority (MahaRERA) provides certain protections and guidelines for homebuyers in cases like the one you described. If the builder has not fulfilled their obligations as per the agreement and if you want to cancel the agreement, you may be entitled to a refund, and the builder may not be able to deduct 10% against cancellation.

Here are some steps you can consider:

Check the Agreement: Carefully review the sale agreement, especially the clauses related to cancellation, refund, and delay in possession. Builders cannot arbitrarily deduct amounts without a valid reason mentioned in the agreement.

File a Complaint with MahaRERA: If the builder has not met their commitments, you can consider filing a complaint with MahaRERA. They can mediate the issue and help resolve disputes between builders and buyers.

Interest on Delay: MahaRERA often imposes penalties on builders for project delays. Depending on the terms of your agreement and the extent of the delay, you may be entitled to interest on the amount you have paid.

Negotiate with the Builder: Before taking any legal action, you can also try to negotiate with the builder to reach an amicable solution, including a full refund of the amount you paid.