Respected Sir,the property shall be divided as per the will deed. If the property was divided and posseion handed over to both of you and both of you have decleared on oath of taking the possesion by way of affidavit, there is no chance to reverse the process after about fifteen years.
You must be having the copies of affidavit.
You must represent the case filed by your brother through some advocate otherwise your brother can manage some mischeif . If you have already submitted your written statement then you need to folow up with the evidance .
Just hire some good advocate who can folow the case in your absence punctually.