supply of herbicide (weed killer) ammonium salt of glyphosate 71 percentage sg (water soluble granules), a non selective, systemic, post emergence herbicide suitable for effective control of annual and perennial grasses, broadleaf weeds and other unwanted vegetation in railway track cess, embankments, service roads, station yards and adjoining areas. the product shall be supplied in sealed, original manufacturer hdpe containers, duly labelled and conforming to the provisions of the insecticides