arboriculture against modernisation of logistics section at air force station pathankot , ( i ) uprooting vegetation and weeds by ploughing and removing the other growth with roots , sorting the stones including disposals . the depth must be between 20 cm extra earth filling 6 cm for grassing levelling the area and to prepare the bed to the entire satisfaction of engr-in-charge complete all as specified . - qty 100 sqm ( ii ) m&l for tree plantation by digging the holes of size 45 cm in square / round and minimum depth 45 cm in any type of soil and refilling the extra / sandy soil mixed with manure of quantity 200 gm to each hole complete to the entire satisfaction of engineer-in-charge . the distance of each hole must be followed the road norms or as directed by engineer-in-charge . electric and overhead line must be taken into consideration before designing the holes and variety of trees to be planted such as as ficus black , bottle palm , ashoka , large stomia , ticoma , varigata complete all as specified . - qty 250 each