It is the only daily train from Chennai to the South which does not have a halt at both Arakkonam Junction and Jolarpettai. The train was made to run via Irugur Podanur line due to single line constraints at Coimbatore Junction, later it was restored via Coimbatore Junction in 2014. This is the fastest train as 12623 between MAS - CBE and MAS - ERN. The train is meant for achieving its maximum speed between Katpadi and Basin Bridge Junction. Conventional ICF coaches on the train were replaced by LHB coaches in January 2017. The train usually leaves from PF no: 5 or 9 from Chennai Central. This train is amongst the prestigious trains of the
Southern Railway zone. Total number of coaches 22 The train consists of: • Loco HOG-enabled WAP-7 from Royapuram or Erode • 1 AC First AC Coach (H1) • 1 AC Two-tier coaches(A1) • 5 AC Three-tier coaches (B1, B2, B3, B4, B5) • 9 Sleeper coaches (S1–S9) • 4 Unreserved General Sitting coaches (GS) • 1 End on Generator • 1 Luggage Cum LHB Second Sitting and Coach for Disabled ==Coach composition (Upward – 12623)==