Partner in property rented property without others consent what to do

My mother is a partner in a family business where in my uncle + his wife + 2 more aunties are partners of 20% each . My uncle and his wife have entered into a rent agreement for 5 years with a third party without consent of the other 3 ladies partners in 2011. Legal case in the city civil for termination of agreement got status qua & chamber Summons in sessions court bombay for recovery of payable rent got rejected . Filed an AO in high court - still pending . 5 years NO RENT RECEIVED . Rent agreement renewal due. How to stop renewal & recover our rent.