How was the edge of the existing River Mathabanga in (a) ii determined and agreed upon?
The edge of the existing River Mathabanga in (a) ii was determined and agreed upon through a joint survey conducted by both the Indian and Bangladeshi Land Records and Survey Departments. The boundary was drawn from existing Boundary Pillar No. 152/5-S to Boundary Pillar No. 153/1-S, following the edge of the river as it was jointly surveyed and agreed upon in June, 2011.