supply of good quality bi-cycle with 50 litre insulated box at different blocks in the murshidabad district of west bengal for the fy 2019-20 . , general specification of bi-cycle with 50 litre insulated box: 1 ) the input should include one standard branded bi-cycle ( 22 inch frame size ) with a specially fabricated jumbo carrier to carry the 50 litres insulated box . 2 ) 50 litre insulated box with lid . 3 ) the insulated box should be made from usda / fda / eu approved food grades polythene materials in double wall construction by a unique moulding process with following attributes: a ) pu filled & uv stabilized . b ) superior grade fittings and hardware . c ) hygienic . d ) leak-proof , rustproof and corrosion-free . e ) keep things stored in hot / cold conditions for longer periods . f ) box should be certified by the competent authority as fit for food .