| [[Image:|150px| ]]|
|Line of route|
|Mysore to Nanjangud|
|Gauge / mileage|
|Metre gauge||16 miles (1905)|
|1891||Opened to traffic|
|1891||Worked by Southern Mahratta Railway|
|1907||Madras and Southern Mahratta Railway|
|1919||Mysore State Railway|
|How to interpret this infobox|
The Mysore-Nanjangud Railway was a short metre gauge(MG) line that extended the Mysore State Railway(MSR) mainline from Mysore to Nanjangud. The railway was owned by the Princely Mysore State Durbar and worked by the MSR . The MSR became the Madras and Southern Mahratta Railway(M&SMR) in 1907, they worked the line until 1919 when the railway was transferred to the M&SMR.
Refer to FIBIS Fact File #4: “Research sources for Indian Railways, 1845-1947” - available from the Fibis shop. This Fact File contains invaluable advice on 'Researching ancestors in the UK records of Indian Railways' with particular reference to the India Office Records (IOR) held at the British Library
An on-line search of the IOR records relating to this railway  gives the following: -
- L/F/8/20/1704 “Madras and Southern Mahratta Railway Company Limited, Contract as to transfer of Mysore-Nanjangud, Birur-Shimoga and Mysore-Bangalore sections of the Mysore Railway to the Mysore Durbar; 1924"