The 'Madras-Tuticorin Mainline' is the name of the [[South India Railway]] metre gauge([[Rail_gauge_#Metre_Gauge|MG]]) Mainline connecting [[Madras]] to [[Dhanushkodi]]
The 'Madras-Tuticorin Mainline' is the name of the [[South Indian Railway]](SIR) metre gauge([[Rail_gauge_#Metre_Gauge|MG]]) Mainline connecting [[Madras]] to the [[Pamban Branch Railway]] with a length of 460 miles(km). Included in the line is the [[Tuticorin Branch Line]] to [[Tuticorin]], a further 99 miles.
with a branch to [[Tuticorin]]
The origin of this line goes back to the [[Great Southern of India Railway]] with the construction of a broad gauge([[Rail_gauge#Broad_Gauge|BG]])
The origin of part of this line goes back to the [[Great Southern of India Railway]] with the construction of a broad gauge([[Rail_gauge#Broad_Gauge|BG]]) line from [[Negapatam]] to [[Tuticorin]] via [[Tanjore]] and [[Madura]].
Thefrom the coast at [[Negapatam]] to [[Tanjore]]
The following is based on the “Administration Report on Railways 1918”<ref name=AdminSIR>[https://archive.org/stream/BombayBarodaAndCentralIndiaRailwaySystem/Bombay_Baroda_And_Central_India_Railway_System#page/n147/mode/1up “Administration Report on Railways 1918” page 138 (pdf 147)]; Retrieved 29 Jan 2018</ref> and the "Marvels of the South Indian Railway 1859-1951"<ref> Southern Railway Heritage Centre "Marvels of the South Indian Railway 1859-1951"; 'Events at a Glance' page 273-278</ref>.
==Progress in Mainline opening==
[[File: Madras Railway Map 1909, south section.png|thumb| Madras Railway Map 1909, south section]]
