Grandfather property dispute between daughters

Dear Sir, My grandfather had self purchased a property on his own and its was registered in her wife's Name, later it was made death will by his wife, the property should go to 3 daughters after her death out of 5 children (3 ladies 2 gents). Grand mother dies in 2013 and all 3 daughters dint transfer the khatha for more than 1 1/2 year. later on elder daughter dies in 2014 and there will be quarrel between the son-in laws. Hence my grandfather was upset on the progress and decided to take back the property in his name. So he took 2 daughters signature on release deed and it got registered in sub register office, khata also transfered in the name of grand father from 2015 to till june 17. Later grandfather made gift deed to his 2 sons. on knowing the fact of gift deed 2 Daughter & their husbands filed complaint against their father in BBMP Tribunal & DC gave verdict saying khata should be in the name of grand mother, who is already dead before 5 years back. So now whether our grandfather can go to senior citizen tribunal court for seeking justice and asking for the property back in his name untill his death. He is 85 years aged and lives in small outhouse room with no sunlight and air. Request you to kindly suggest a way to go forward.