TTD has constructed several cement checkdams, contour trenches, masonry embankments and percolation tanks to prevent the rain water from draining off the Seshachala Hills
Eighty kilometre long peripheral trenches have been dug from Rangampeta to Kodur. Besides, 89 checkdams, 136 Gabrion checkdams, 3884 rock fill dams have been built. Check dams have also been constructed on the first and second ghat roads from Tirupati to Tirumala to prevent the draining of water and the erosion of soil.
These sustained efforts have contributed in a substantial improvement in the ground water level. A report given by the Department of Groundwater mentions an increase of 3.155 million cubic metres and 6.59 million cubic metres of recharge in groundwater in the years 2000 and 2001 respectively.