scr construction organisation- doubling of track between donakonda and nandyalstations- proposed construction of station buildings with rbg rooms includingconstruction/extension of platforms, fobs, cops at somidevipalle,yadavalli, giddalur,krishnamsetty palle,and diguvametta stations and construction of ibh,gate lodge,approachroads, and structure including circulating area and other miscellaneous works & constructionof orh at dkd,mrk,&gid,srh @ mrk,gid,axen office @ dkd,mrk and sse office @ndlbidding type normal tender .