Support rod Cylinder assembly for Pantograph type AM- 12 to Stone India Ltd. ref no. S. 0221117501 or Contransys part no. C. 01560 or to equivalent part no. of GSEC ( DRG no GSEC/ PANTO/ 091 ALT- 1 ) or concept confirming to RDSO Specification No. RDSO/ 2008/ EL/ SPEC/ 0066 Rev. o dt. 20. 6. 08 & a mendment 1 dt. 31. 12. 08 a mendment No. 2 dt. 19. 08. 2010.