Digging of water absorption trench (WAT) without trimming , involving earth work excavation by the excavator with shovel 0.50 cum capacity in all kinds of soils including boulders up to 0.30 mt diameter and depositing in rough Trapezoidal shape by leaving the berm of 1 mt from the edge of the trench (3m x 2m x 3m size or 7.50 cum or running meter or 7500 cum per kilometer in Visakhapatnam range of visakhapatnam division during 2017-18