Apparently, it simple case of inheritance; ‘Intestate Succession’.
The forms/procedure is available in O/o Authority under whose jurisdiction property falls say; MC, and might be on website also.
Usually death certificate, legal heir certificate are basic requirements.
Obtain updated mutation records showing share of Legal heirs, from concerned official e.g. Patwaari.
This gives rights to all legal heirs equal to that of owner.
Thereafter all legal heirs can dispose their share in favor any Co-sharer by a valid/registered deed say; release/relinquishment/gift deed.
The fee and charges is state subject and may be waived off/negligible amongst relatives/blood relation.
Inquire from local SRO, senior deed writer that have copies of latest notifications.
Submit copy of the deed to concerned official e.g. Patwaari.
Obtain updated mutation records showing share of Legal heirs transferred in your name.