tender for upper flange of uic vestibule bellow rdsos sk no.99056 alt no.3,consisting of item no. 2,5,8 -13 assembled condition and rdso spec. no. rdso/2007/cg-05 with 5 amendment last amendment slip no.5ofaugust 2016 with corrigendum -1 of may 2015 and corrigendum-2 of june 2015.