The 16377 / 16378 KSR Bengaluru–Ernakulam Intercity Express is a daily intercity express train which runs daily between K.S.R Bengaluru City Junction and Ernakulam Junction via Hosur.

History In the railway budget of the year 1997–98, a plan was proposed to introduce a superfast train between Coimbatore and Bangalore. On 15 April 1998, Bangalore–Coimbatore Intercity Express train was inaugurated as Train no: 2677. In the year 2008, the service was extended till Ernakulam as Train no: 12677 after few temporary runs.

Train information The train is hauled by an Erode (EDDX or EDE) or Arakkonambased WAP-4 throughout the journey. Before the commissioning of electrification of the Bengaluru (Baiyyappanahalli) - Salem line on 2 July 2022, the train used to be hauled by a Golden Rock based WDP-4D (earlier Erode-based), WDG-4 or WDP-4B or an Erode based WDM-3D from Bangalore to Erode, and an Erode-based WAP-4 from Erode to Ernakulam.

This train runs daily each way, as Train no: 12677 (Ernakulam Exp) departing Bangalore City Junction at 06:10hrs and reaching Ernakulam Junction at 16:55 hrs and Train no: 12678 (Bangalore Exp) departing Ernakulam Junction at 09:10 hrs and reaching Bangalore City Junction at 21:00 hrs. It covers a distance of in each direction.

During the COVID-19 pandemic, the train was numbered as 02677/02678 and was hauled by a Golden Rock-based WDP4D or WDP4B throughout the journey.

Rake/coach composition Since June 20, 2025, the train started running with an upgraded LHB rake. The rake of the train consists of 4 unreserved coaches, 11 second sitting coaches, 2 AC chair car coach, a pantry car and 2 SLR cars, making a total of 20 coaches. LOCO SLR GEN GEN D1 D2 D3 D4 D5 D6 D7D8 D9 D10 D11 PC C1 C2GENGENEOG SLR – Sitting cum luggage rake

UR – Unreserved

D – Second sitting

C – AC chair car

PC – Pantry car

EOG - End on generation car

Major Incidents On 13 February 2015, the train derailed on its onward journey to Ernakulam from Bangalore, leading to 10 deaths and injuring 150 people.

The Ernakulam Junction to KSR Bangalore Intercity Superfast Express Degraded to a Normal Intercity Express train onwards December 3&4 2025 in Both Directions with Number 16377/16378

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