The 12295 / 12296 Sanghamitra Superfast Express is a Express train that runs daily between the Sir M. Visvesvaraya Terminal in Bengaluru, Karnataka and Danapur railway station in Patna, Bihar. This is the one and only daily train from Patna which connects Patna with Chennai and Bengaluru. It initially ran between Chennai Central to Patna, but in 2001 it was extended to Yeswanthpur in Karnataka and ran between Yeswantpur to Patna via Chennai Central. It marks as the longest-running daily train of the South Western Railway Division. This train takes a total of 43 hours and 45 minutes to cover the 2681 km distance. Trains numbered 12295UP and 12296DN belong to the Superfast category of Indian Railways.