The 35 km (22 mi) long broad-gauge line was approved in 2019.

The line is named after the flower Kanaka (Crossandra infundibuliformis) in Kannada.

The Heelalige to Rajanakunte line via Yelahanka was the longest among the four proposed corridors by RITES in 2019.

[5] In 2024, the pre-construction works for the line had commenced along with acquisition process of private land for the corridor, and work had already commenced on minor bridges and earth-retaining structures.

[6] For phase wise construction works, the line was divided in two packages C4A and C4B.