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'''Jalarpet-Mangalore Mainline'''.

Constructed, owned as a [[Rail_gauge#Broad_Gauge|Broad Gauge]] line connecting [[Jalarpet]] to [[Mangalore]]. Owned and worked by [[Madras Railway ]](MR) up to 31 Dec 1907, then transferred to SIR[[South Indian Railway]].The total length of the line was 417 miles(617km) and with two branches 446 miles(717km)  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/n145/mode/1up “Administration Report on Railways 1918” page 136 (pdf 145)]; 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]]*1860-61 [[Jalarpet]] to [[Salem]] via . Via [[Tiruppattur]] and [[Morappur, opened 1860]]*1861-61; extended via 62 [[Salem]] to Kadalundi (9 miles/15km short of [[Calicut]]). Via [[Sankaridrug and ]], [[Erode|Erode Junction ]] (connection with MG [[Erode Branch Line SIR|SIR networkmetre gauge 'Erode Branch') reaching Kadalundi in 1861-62]], via [[Podanur Junction]], Palakkad Junction(Olavakode) , Pattambi, Kuttippuram and Tirur. The line was extended to [[CalicutTirur]] in 1888. The *1901-04 [[Calicut-Azikhal Azhikal Railway|Calicut-AzikhalAzhikal Extension]]to [[Azhikal] extension via ]. Via [[Badagara]], [[Tellicherry, ]] and [[Cannanore opened 1901-04; and the ]]*1907 [[AzikhalAzhikal-Mangalore Railway|AzikhalAzhikal-MangaloreExtension]] extension reached [[Mangalore]] by 1907 via . Via [[Hosdrug]], [[Kasaragod ]] and Kumbla. The total line distance was being 417 miles(671km) <ref name  ==Branch Lines==AdminSIR>*1868 [[https://archive.org/stream/BombayBarodaAndCentralIndiaRailwaySystem/Bombay_Baroda_And_Central_India_Railway_System#page/n144/mode/1up “Administration Report on Railways 1918” page 136 Palghat Branch Line]] from Palakkad Junction(pdf 144Olavakode)*1873 [[Mettupalaiyam Branch Line]] from [[Podanur]]; Retrieved 28 Nov 2016</ref>.

See '''[[Madras Railway ]]''' up to 31 Dec 1907

then '''[[South Indian Railway ]]''' from 1 Jan 1908