Expression of Interest (EOI) for Selection of Empaneled Business Associate for the Work for Survey, Design, Supply, Installation, Testing and Commissioning of Automatic Block Signaling Work using Multi Section Digital Axle counter for continuous track circuiting along with provision of addtional hardware of medha make EI in connection to commissioning of 3rd line bi-directional ABS in GDK-BUW Section of Lucknow division of North Eastern Railway. On back to back basis.