The 27 km (17 mi) long broad-gauge line was approved in 2019 with its construction works commencing in 2022.

The route between Benniganahalli and Chikkabanavara was part of the longer line (83 km (52 mi)) of Tumakuru–Yeshavanthapur–Benniganahalli proposed under 'Call To Action' report of 2010.

[2] Later in 2019, the line saw reduction in length with termination in Chikkabanavara, in Northwest of Bengaluru.

[3] On 7 October 2020, government of India approved the four corridors of Bengaluru suburban rail project including the KSR Bengaluru – Devanahalli line and its Airport branch.

[7] In september 2024, the construction progress on the line stood at 28% with 22% of the financial expenditure.