Pyki Survey Sub Number Is misused to another nameless land

Respected Sir, we have a gomala land which my grand mother purchased in the year 1941 from another person got registered at subregistrar office changes RTC on her name doing agriculture by paying regular taxes at panchayat office.she passed away in the year 1941. There after we continued tax paying and paid till 1993. In the year 2019 our taluk office released a durasti list and new survey numbers to all the lands, in that list our land number is not there on my verification found in the year 2009 some in the same gomala survey number utilising our land pyki number to the different piece of land made durasti and taken a new survey number and cultivating the property. Our land is in our possession but without survey number. Kindly guide me how to solve this problem.