[2] MEMU Car sheds in Kollam and Palakkad were proposed in 2008's Indian Railway Budget.

[4] The Kollam MEMU Shed was formally commissioned on 1 December 2013, five years after its completion.

[5] 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.

[6] As the first step, a three-phase MEMU train with 8 coaches started service on Kollam Junction-Ernakulam Junction-Kollam Junction route from September 2, 2019.

[7] The MEMU Car Shed in Kollam currently conducts periodic overhauling activities for two different types of rakes manufactured by ICF, Chennai: Presently, 9 pairs of MEMU services are operated from/to Kollam Junction.