Succession opens on date of death; by inheritance or testamentary succession (in case of valid WILL by deceased owner/testator).
You are to make IT clear that; If WILL exists then … The property should devolve upon beneficiary(ies) as in valid WILL if WILL is duly acted upon without any cloud on IT.
In case of Hindu male the 1st right is of ClassI legal heirs i.e. Mother (if alive as on date of death), wife (if alive as on date of death), sons, daughters……
In case of deceased Hindu woman dying without disposing her estate/property in her life time by a valid/registered deed ClassI,II is not applicable rather nature and source of property matters.
If the property is self acquired/earned/absolute in the hands of Hindu woman the 1st right is of her husband (if alive as on date of death) and sons, daughters…………
If property is acquired from husband side and 1st right is of her sons, daughters…………and if sons and daughters are not available then legal heirs of husband.
If property is acquired from parents side and 1st right is of her sons, daughters…………and if sons and daughters are not available then legal heirs of father.
IT is mandatory to probate the WILL in the areas of Bombay, Calcutta, and Madras. It is not mandatory to probate the WILL in the area of Delhi. It is not mandatory to register the WILL. IT is not mandatory to notarize the WILL. The WILL should just be valid. Unregistered WILL can be acted upon. The last valid WILL ( even on plain paper /even if handwritten) prevails.