Iwant to know the address of Mental Hospital, in Kolkata.Where I can admit one of my close relative age 64 yr.

You can't commit your relative unless they are found unfit to make decisions about their own wellbeing. If this relative has behaviors you feel are unsuitable, you should call your local emergency room and ask them what hospitals offer mental health evaluations. Then take your relative in for a eval. They will be seen by a counselor who'll determine whether admission is needed. Your relative may also be directed to a mental health clinic. Believe it or not, your relative may be a candidate for medical treatment. There are some wonderful new drugs that treat some of the early stages of Alzheimer's.