Supply Of Skilled/Unskilled Labour, Petrol Other Fuel Required For Welding Of 52Kg/60Kg Rail Joints 72 Uts/90 Uts For Making Cwr/Lwr Pairing Of Rail &Amp Cleaning Of Welds By Mechanical Means Complete Job (Portion &Amp Mould Will Be Supplied By Railway Free Of Cost) Under Sr. Den/I/Varanasi Jurisdiction.