I am living in Punjab. My father has made a will favoring his property in my name. The will is on a simple paper. Will has two witnesses . One is his wife I.e. my mother. She is not a beneficiary In this will. Second is a stranger a homeless person , a person without home. I want to know 1. Is it a valid will. 2. Can the wife of the writer of a will when she is not a beneficiary to the will be a witness. 3. Can a stranger a person without home be a witness to a will. 4 . Can a will on a simple paper without any registration be a valid will.
The court will care if the testator is adult, of sound mind (including, not drunk), makes the will of their own volition, and only disposes of their own property. It must be witnessed by 2 persons, who witness the testator signing the will (or legal substitute such as a "mark", or an instruction to a third party to sign). And the will must be the last will of the testator. Ultimately, the probate process is what determines the validity of the will.
There is nothing in your description of the witnesses that would make the will invalid. A will can be on plain paper, and it is not required that it be registered. The Indian Succession Act 1925 is the law of wills for all of India.