Design and Construction of Bow String Girder Over Bridges (Main Railway Portion Only), including a 4-Lane Bow String Girder ROB at Railway Level Crossing No. 107A/2T on the Varanasi–Lucknow Rail Section near Darshan Nagar, and a 2-Lane ROB at Railway Crossing No. 112 on Panchkosi Parikrama Marg in Ayodhya District, Uttar Pradesh, including foundation and substructure works of the railway portion (EPC Basis).