Left brain side stroke. Can he be cured?

This is Rahmatullah from Vellore. My father Mohammad Zahoor, He had a brain stroke on 2nd May. He got clot on left side of brain and his right side got paralysed and had aphasia and can't speak. Doctor did the tests and said that the damage is permanent and chances of improvement is little. He is stubborn sometimes, and also agressive, refusing to take medicines, always want to go outside, cannot eat or drink properly or even go to the bathroom properly. Can sometimes become violent. We cannot understand what he is saying. He cannot express his feelings properly and cannot understand something properly. He is confused sometimes. He also shouts and yells a lot, we can't identify if he saying something or just shouting He is restless most of the times He cry, shouts and restless most of the time. How can he be cured ? Because in CMC Vellore, the doctor said the damage is permanent and improvement chance is little. Mri attached