DC Motor Assembly for I. R. S. E. P. M.- ( 143mm ) as per specification IRS: S 37/ 82, Amnd- 3. S. No. 1: Description of item- DC Motor, Drg. No. RDSO/ S- 10910 Alt.- 3, Qty./ Set- 1 S. No. 2: Description of item- Gear Box, Drg. No. RDSO/ S- 10850 Alt.- 2, Qty./ Set- 1