tender for gear case assembly for wag-5/wag-7/wap-4 loco as per clw drg. no.05/1/13/166,alt.-15, 05/1/13/169,alt-8 and sr. dee/rs/cnb drg. no. a1/2001/ cnb/1628/5027/ht,alt.-a, a2/2000/cnb/1535/5023/ ht,alt.-a, a3/2000/cnb/1582/5024/ht, sheet no. 1 to 3, alt.-d, woolenfelt shall be supplied separately and a4/2003/cnb/1823/5031/bt,alt.-a, for bolt.