Improvement Of Kolkata Yard By Provision Of Track Renewal Work And Ctr(P) By Pqrs In Between Patipukur-Kolkata [1.165-1.422, 1.841-2.442, 0.000-1.020=02.05 Tkm] And Trr(P) In Circular Railway [2.442-2.67, 3.138-3.353, 3.389-3.565, 3.92-4.291, 5.00-5.223, 5.274-5.774, 5.774-6.00, 6.115-7.115, 7.115-8.651=4.539 Tkm Work And Renewal Of Diamond Crossing Along With Other Ancillary Works Under Assistant Engineer/Ballygunge.