Agartala–SMVT Bengaluru Humsafar Express is the longest-running Humsafar Express and 5th longest train service of Indian Railways, It is a fully air conditioned express train, connecting Sir M. Visvesvaraya Terminal, Bengaluru, the capital city of Karnataka and Agartala railway station, Agartala, the capital city of Tripura . It is currently being operated with 12503/12504 train numbers on a weekly basis. The train runs through states of Karnataka, Tamil Nadu, Andhra Pradesh, Odisha, West Bengal, Bihar, Assam and Tripura. On its journey the train also touches some parts of Jharkhand in Pakur district but does not have the stoppage there.