procurement of professional survey grade uav / drone 60 nos for large scale mapping projects , procurement of professional survey grade uav / drone , procurement of professional survey grade uav / drone with oem accessories and warranty of 1 year or 500 landings , whichever is earlier as per the technical specification at annexure-c , brick work in c . m 1:5 mix using 2nd class ground moulded chamber burnt bricks with including cost and conveyance of all materials and including all labour charges etc complete , brick work in c . m 1:5 mix using 2nd class ground moulded chamber burnt bricks with including cost and conveyance of all materials and including all labour charges etc complete