Rachana Construction, Ram Kripal Singh Construction submit bids for pre-bid tie-up for civil works for Sitamarhi-Raxaul rail section in Bihar September 19, 2025 | Project Bidders, Project Updates Rachana Construction and Ram Kripal Singh Construction Private Limited (RKS Construction) have submitted bids for construction of doubling work including earth work, blanketing….. This content is restricted.