hiring of 02 nos . water tankers ( sprinklers ) , capacity - 12kl each , on daily hire basis ( 24 hrs service ) for effective dust suppression on roads , one for a period of 03 years under purnadih ocp , another for a period of 02 years under kdh ocp , nk area , hiring of 02 ( two ) nos . of water tankers ( sprinklers ) having carrying capacity - 12kl each , on daily hire basis ( 24 hours service ) for effective dust suppression on roads , ( i ) . one for a period of 03 years ( 810 days , excluding rainy season days ) with route from quarry no . 1 , weigh bridge no . 1 to kdh weigh bridge terminal on coal transportation road ( average distance slab = 79 . 2 km per day ) under purnadih ocp and ( ii ) . another for a period of 02 years ( 600 days , excluding rainy season days ) with route from kdh water filling point to churi office and through sonadobha nala to dakra sub-station on coal transportation road ( average distance slab = 106 km per day ) under kdh ocp , nk area .