A buyer is facing issues with a property deal in Delhi after the seller failed to provide necessary documents on time, leading to the expiry of the agreement. The property is also NPA with the seller's bank. The advice suggests that while sale deeds can be executed after the agreement expiry, the buyer's bank must be willing to provide a loan based on the available documents. The buyer needs to decide whether to proceed or cancel and seek a refund, considering potential future litigation if the seller violates bank terms.