tender for drilling of new bore well at anna nagar area in ward no.41.; 1 drilling of 150mm vertical bores in hard rock areas to the required depth as directed by departmental officers including labour charges for inserting cassing pipe assembling in the drilled holes including welding the jointing if neccesssary grouting the cassing pipe etc., and including transportation charges for the rig and supporting vechiles from one place to another. 2 upto 150m below gl 3 from 151 m to 180m 4 from 181 m to 210m 5 from 211 m to 240m 6 from 241 m to 270 m 7 from 271 m to 300 m 8 supply, delivery and fixing in position of 150mm dia rs pvc cassing pipe with is specification etc., complete. 9 supply of 3.00 x 4.00sq.mm flat submersible cabel of isi / is make etc., complete as per standard specifications. 10 supply and delivery of 65 mm dia upvc. pipes with isi specification as directed by the departmental officers including cost and conveyance the same to the departmental store etc., complete as per standard specifications. 11 supply and fixing of 16a tpn metal clad switch on suitable angle iron frame work with ms cable entry boxes with earth connection only (sd 146) 12 supply and run of 4 of 4 sq.mm. (56 / 0.3) pvc insulated sc unsheathed copper conductor of 1100v grade on 7 /20 gi bearer wire for service connection mains (sd 67)