Expression of Interest (EOI) for Selection of Empaneled Business Associate for the work of Provision of Indoor and Outdoor signaling works with Electronic Interlocking System (Distributed Type:1 Central and 4 EI Huts) at Vyasnagar station, provision of Electronic Interlocking System for automatic block signalling at Vyasnagar station including modifications required in EI based Automatic signalling in KEI-VYN sections and associated Telecom works of KEI-VYN-DDU sections in connection with yard remodelling of Vyasnagar station with 3rd-4th Line work between BSBDDU section of Lucknow division of Northern Railways On Back to Back Basis.