Change in Varasaat without any notice

My father in law was gifted 10 acres agriculture land in 50 years back by relative . He passed away in 2016 . In the year 2024 January through proper application my mother in law,s name was added in her husbands place as the Varasaat in the Khatauni . Now in November 2024 one of the relative who initially gifted the land has got her name removed and got his Wife and sister in Law name inserted via a Chakbandi restoration order Niyam 109 as original land owner.My mother in law is 85 year old.