Details: drilling of borewells anywhere in tamilnadu including transportation from one place to another with in tamilnadu in alluvial soil sedimentary strata of clay and sand stone shale pebbles boulders etc. by first taking a pilot bore of 140 mm/150mm dia and then enlarging to required dia direct or reverse rotary mud circulation method using rotary rigs fuel, labour and drilling bentonite and water required for drilling at site( site will be shown by the departmental officers) including construction of mud pit. (up to 60m depth) below 60mdepth reaming140/ 150 mm dia pilot bore to 300mm dia bore as directed by the departmental officer. below 60mdepth supply of approved quality pvc casing pipe 150mm cs plain pipe with exice duty as per is 12818/1992 supply of approved quality pvc casing pipe 150mm rs slotted pipe with exice duty as per is 12818/1992. supply of approved quality 150mm dia od pvc end plug etc. complete as per standard specification. labour charges for inserting 150 mm/200 mm/250
Sector: RDPR