tender for set of window assembly for bvcm wagons consisting of (i).window complete to drawing no. wd-15009-s-13, alt.1 or latest,item no.6 - qty - 1 no./set. (ii). window guide to drawing no. wd-15009-s-13, alt.1 or latest, item no.7 - qty - 2 nos./set.(iii).gravitycatch for window assembly to drawing no.ca/dw-2200,alt.nil or latest - qty- 6 nos./set.