Supply of relay, ac immune, plug-in-type, style qbat, aci, dc biased track relay 9 ohms, 2f-2b contacts, front and back contacts metal to carbon, complete with plug board, retaining clip and connectors conforming as per rdso/spn/84 ver 2.0 or latest if any interlocking code is abejx.

(a) electrical general work in connection with s&t work conversion of relay based interlocking to electronic interlocking at siliguri town (sgut) station of katihar division (balance installation under priority category - 3) . (b) electrical general work in connection with s&t work provision of distributed type electronic interlocking system at sguj station of katihar division .

Supply of universal lamp proving relay ac miniature, plug-in contacts 4f-4b metal to carbon, as per rdso specn. no. sts/e/relays/ac lit led signal/09-2002 : irs:s23:rs:s34 and spec. no. brs:940,941a (common for main subsidiary signals) and technical specifications, for 110v dc/12w led signal of main all aspect, calling-on, route and shunt signals, complete with plug board, base, retaining clip and connecto