Design, Programming, Installation, Supply, Testing and Commissioning of Electronic Interlocking ( EI ) System Conforming to RDSO Specification No. RDSO/ SPN/ 192/ 2019 or Latest ( With Latest Amendment if any ) as per SIP along with Indoor & Outdoor Work Including Part Supply of Materials at Nepalganj Stations in Connection with PHASE 2 of Behraich- Nepalganj Gauge Conversion work in Lucknow Division of N. E. Railway.