Details: providing and laying concrete pipes of is np class of 300 mm diameter in proper line, level and including necessary collars, excavation, laying. fixing with collars in cement mortar 11 and refilling the trench complete providing and constructing brick masony inspection chamber 60cm x 45cm x 90cm including 1.4.8 cement concrete foundation 1:24cement concrete channels half round g s.w. pipes, brick masonry. plastering from inside and with frame fixed in cement concrete withr.c.c. cover medium duty 140 kg with frame etc complete supplying hard murum/ kankar at the road site, including conveying and stacking complete spreading hard murum for side width etc. complete quality control testing charges royalty charges add gst