tender for draw bar & castel nut for draw gear arrangement spec. no. is : 5517/93, 2nd rev.amend no.2rdso,s str no.c-9509 (rev.2)/2007, drg. no. sk.99007, alt.3 item 1&2. as per drg.no. rdsossk.99007,alt-3., item 1&2 as per specn. is.5517/93,2nd rev.amend no. 2, rdsos str no. c-9509[rev.2]/2007 .