1 ) Manufacture and supply of Metal liners to RDSO Drg No T- 3741 Alt- 7 ( Gauge side liner ) and T- 3742 Alt- 7 ( Non Gauge side liner ). 2 ) Manufacture and Supply of Metal Liner to RDSO Drg. No. T- 3738 Alt- 3. 3 ) Manufacture and supply of Metal liners to RDSO Drg No T- 8616 Alt- 1 ( Gauge side liner ) and T- 8617 Alt- 1 ( Non Gauge side liner )