addition alteration to karkardooma court complex delhi dg 2021 22 sh making arrangement for sanitized the main court complex preventive measures for corona virus covid 19 in karkardooma court complex delhi , making arrangement for sanitized the court complex using sodium hydrochlorite ( naoci ) with 1% dilution and other required chemical using mechanical means ( spray machine and other necessary equipment ) the court complex including floor and wall height upto 6 ft . including railing , stair case , furniture , wall panelling , tile , lift and other items etc . application of disinfectants should be as per requirement of kkd court authority and as per direction of engineer-in-charge . ( measurement for payment purpose shall be the floor area of the building no extra payment shall be given to the agency for vertical portions etc . )