If you have expressed your readiness to execute the registered sale deed in favor of the buyer after receiving the balance of sale consideration amount as decreed by court and fixed a date within the stipulated time by issuing a notice to this effect by registered post, then it becomes the duty of the buyer to get the sale deed registered on his name either on that date or by a request to the seller to fix it on some other date within the time stipulated by court, the seller cannot remain silent over the matter even after receiving the said notice, which clearly indicates that either he is not interested on getting the sale deed registered to his name or he has sufficient money to complete the sale transaction.
In that case the seller can file a petition to the same court to dismiss the suit by setting aside its orders passed with the said condition.
Alternately as you suggested you can file an IA before the same court seeking its permission to return the advance sale consideration amount received so far and the same be deposited to the court if the plaintiff is not willing to accept or furnish the bank account details and also can pray for recession of contract. Recession is a complete cancellation of the contract, which means all provisions will be terminated. Contracts are cancelled on a variety of grounds.
Under the Contract Act, a voidable contract, when avoided, has been held to become void. When a voidable contract is rescinded, the other party need not perform his outstanding obligation under the contract. The party rescinding the contract must restore the benefit received under the contract to the other party. Any party receiving anything under the contract is liable to restore it or make compensation for it to the other person from whom it has been received.
You can invoke the provisions of section 28 of Specific relief act which states thus:
28. Rescission in certain circumstances of contracts for the sale or lease of immovable property, the specific performance of which has been decreed
(1) Where in any suit a decree for specific performance of a contract for the sale or lease of immovable property has been made and the purchaser or lessee does not, within the period allowed by the decree or such further period as the court may allow, pay the purchase money or other sum which the court has ordered him to pay, the vendor or lessor may apply in the same suit in which the decree is made, to have the contract rescinded and on such application the court may, by order, rescind the contract either so far as regards the party in default or altogether, as the justice of the case may require.
(2) Where a contract is rescinded under sub-section (1), the court-
(a) shall direct the purchaser or the lessee, if he has obtained possession of the property under the contract, to restore such possession to the vendor or lessor; and
(b) may direct payment to the vendor or lessor of all the rents and profits which have accrued in respect of the property from the date on which possession was so obtained by the purchaser or lessee until restoration of possession to the vendor or lessor, and if the justice of the case so requires, the refund of any sum paid by the vendee or the lessee as earnest money or deposit in connection with the contract.
You can discuss with your advocate and proceed as suggested.