desilting/removal of drain silt from chand bagh culvert lhs to sherpur chowk lhs in ward no. 247,sadatpur, shah (n) zone. sh1: 60% of desilting of drain in 1st phase from 16.01.2026 to 15.06.26 sh2: 40% of desilting of drain in 2nd phase from 16.06.2026 t