Drilling, Blasting, Excavation, Loading, Transportation, Dumping, Spreading And Levelling, Etc., Of 13.739 Lbcm Of In-Situ Ob (Which Includes 2.513 Lbcm Of Top Soil, 7.540 Lbcm Of Sub Soil And 3.686 Lbcm Of Hard Ob) And Re-Handling Of 5.739 Lcm Of Loose Ob And 2.022 Lcm Of Black Cotton Soil To Deepening /De-Silting At The Area Adjacent To Vattivagu Reservoir With Conventional Equipment At Khairagura Ocp, Bellampalli Area During A Period Of 9 Months.