The suit for specific performance of contract can be filed within three years from the date of expiration of the contract.
Since the plaintiff has filed the suit within time limit,m if he has already got a decree in his favor then he should have filed the execution petition within twelve years.
It is not understood that how come the defendant's brother got a stay in this case?
The information provided by you is incomplete.
You may revert with more details.
The suit filed by his brother cannot stop you from proceding with your suit.
What is the status of your suit that you filed in the year 2007?