MEMU sheds in Kollam and Palakkad were proposed in 2008's Indian Railway Budget.
The first announced MEMU shed for Kerala was in Kollam, but the inauguration of this shed was delayed for more than two years due to clearance issues and negligence of Indian Railways.
Palakkad MEMU shed inaugurated on 1 January 2011.
The Kollam MEMU shed was formally commissioned on 1 December 2013, five years after its completion.
Kollam MEMU Shed is the largest MEMU Shed in Kerala, which is equipped with most modern facilities.

In the second half of 2019, the Southern Railway started replacing the traditional rakes with High-speed, three-phase MEMU trains running on Kollam routes.
As the first step, a three-phase MEMU train with 8 rakes started service on Kollam Junction-Ernakulam Junction-Kollam Junction route on September 2, 2019.
MEMU sheds in Kollam and Palakkad were proposed in 2008's Indian Railway Budget. The first announced MEMU shed for Kerala was in Kollam, but the inauguration of this shed was delayed for more than two years due to clearance issues and negligence of Indian Railways. Palakkad MEMU shed inaugurated on 1 January 2011. The Kollam MEMU shed was formally commissioned on 1 December 2013, five years after its completion. Kollam MEMU Shed is the largest MEMU Shed in Kerala, which is equipped with most modern facilities.
In the second half of 2019, the Southern Railway started replacing the traditional rakes with High-speed, three-phase MEMU trains running on Kollam routes. As the first step, a three-phase MEMU train with 8 rakes started service on Kollam Junction-Ernakulam Junction-Kollam Junction route on September 2, 2019.
Kollam MEMU Shed