**Note:- This line has significant role in connecting people to various social, economic, political and religious centers of middle part of Kerala.

During Sabarimala pilgrim (Mandala) season, state transport buses (KSRTC) operate from these stations (mainly from Chengannur and Kottayam).

The launch of the terminal is a good news for Kochi city-bound rail passengers from Kayamkulam–Kottayam–Ernakulam line who face delays because of the frequent halting of trains near or at the Tripunithura railway station as it is located close enough for them to switch over to the metro.

Train service began in Travancore, erstwhile Kerala state on 26 November 1904, with the completion of the Kollam–Sengottai branch line, which was a part of Kollam - Chennai meter gauge route.

Recently Piravam Road, Vaikom Road, Kuruppanthara, Ettumanur, Chingavanam, Changanacherry, Tiruvalla, Chengannur were renovated as part of track doubling with either construction of new station buildings or renovation of platforms or new foot overbridges etc.

Construction activities for relocating Ettumanur station to the middle of Neendoor and Athirampuzha roads are almost done.

[7] Although the initial plan was to build another tunnel, this idea was dropped after the topography was found to be unsuitable.

However the Government of Kerala is now focusing on the alignment for the semi high speed rail corridor from Kochuveli to Kasaragod (K-Rail Silver Line), which expects minimal land acquisition, faster means of travel from Thiruvananthapuram to Kasaragod[16] under KRDCL.