Meet patwari and understand the procedure for trabsfer of land in name of all ClassI legal heirs.
Obtain death certificate and file affidavit for Legal Heir certificate and you can get in same day.
Submit documents for change in mutation record in the name of all ClassI legal heirs.
Obtain Fard shwoing 'Virasat Ka Intkaal'.
Thereafter anyone that is willing to relinquish may sign the relinquishment deed before Sub-Registrar.
Sekk help of an able counsel specializing in family/property/revenue/civil matters.