Tender For comprehensive annual maintenance contract of integrated passenger information system (ipis make m/s chemito infotech pvt. ltd) consisting of train information display boards (tib), coach guidance display board (cgdb) and coach at a glance display board (agdb) installed at rjpb station including five line true colour train indication board at rjpb & dnr stations and gps based digital platform clock at different stations for a period of 03 years under danapur division.