Hello Abhay, As details given by you, it's been a year since your relative had an accident wherein he suffered from injury to his brain. It is definitely a serious injury which has lead to total paralysis and loss of speech over time. Recovery of the patient depends on his age, associated comorbidities (illness), and on the gravity of the injury. You need to consult a neurologist at a higher centre. He may need a team of doctors to evaluate this case. So please consult a neurologist first and then decide on treatment. Most important in your case is bedside care of the patient till you further decide on his treatment. Wish the patient a speedy recovery. Hope our answer helps you. You may refer our page if it helps - Best Neurologist in India.