My dad got paralyzed due to head injury (right side) in an accident. When accident happened I had taken him to neuro surgeon, they removed the clots from brain .Post surgery his condition was ok, he didnt lost his memory , he was speeking with us and then he only is went to bathroom and all. 7 days later his health was getting affected like he lost his speech , he was not able to get up and later his left side became unfunctional. Doctor told thats due to infection inside. After that he was had high fever and continuos convulsion. then another surgery had done, they removed the scull part. doctors gave him different powerful antibiotics and other medicines ,then after 3 weeks its came in control. Now we discharged him from hospital, he is opening his eyes perfectly, seems like he is recognizing us. But he is paralyzed now. Whats your suggestion for further treatment.
Your father is fortunate to be alive.  From what you have described, he had a traumatic subdural hematoma which was evacuated, complicated by infection requiring debridement, antibiotics and further craniectomy.  Recovery is possible, but not likely. Any recovery will take months and require physical therapy to obtain improvement. At this point, whatever brain has been damaged will gradually improve spontaneously, but will require months.  Make sure that he does not fall again, particularly if the skull removed has not been replaced by a protective implant or original bone... his brain is unprotected just under his skin.