Survey and Investigation for the proposed work Improvement to Mugal Ghai Nallah, Chanduri Nallah, Telighai Nallah and its link drain in Nandapur GP of Chandbali Block under Salandi Baitarai Doab No XIII.

Carrying Bench Mark by Double Levelling from GST Bench Mark/ Permanent Bench Mark/ Temporary Bench Mark to Drainage Channel site including all labour, T&P and cost of all materials required for the same (Excluding G.S.T.), labour cess etc complete as per the direction of Engineer-in-charge.

Conducting field survey by levelling Instrument carrying from Temporary Bench Mark fixed near Drainage Channel site for L.S. & C.S. of drainage channel including all labour, T&P and cost of all materials required for the same (Excluding G.S.T.), labour cess etc. complete as directed by Engineering-in-charge. (L.S. at 30 mtr intervals and CS at 5 mtr offset up to both side with obligatory levels) (Up to 10.00 mtr Bed Width)

Preparation of Longitudinal Section and design statement with design calculation of drainage channel, Schematic diagram, Index Map, Catchment area calculation sheet and to be approved from competent Authority including all labour, T&P and cost of all materials required for the same (Excluding G.S.T.), labour cess etc. complete as directed by Engineering-in-charge.