tender for certain repair to otm and md accn of arc, 11 weu, mdc, dad, mes at happy valley under ge shillong-- 1 demolition of plain cement concrete (unreinforced) in ground floors and pavings n exc 15 cm thickness (below or above ground level) complete all as specified and as directed. 2 m&l for 75mm thick pcc 1:3:6 type c2 (using 40mm graded agg) as in plinth protection incl finishing even & smooth using extra cement complete all as specified and directed. 3 m&l for 75mm thick pcc 1:2:4 type b2 (using 40mm graded agg) as in path incl finishing even & smooth without using extra cement complete all as specified and directed. 4 m&l for pcc 1:3:6 type c2 (using 40mm graded aggregate) as in surface channels and drains including necessary formwork complete all as specified and directed.