The company was founded in 1995 by brothers Shivinder Mohan Singh and Malvinder Mohan Singh as Specialty Ranbaxy Limited (SRL), a 50:50 joint venture between Ranbaxy Laboratories and US-based Specialty Laboratories.

[10] In 2011, Fortis Healthcare completed the acquisition of 74.59% stake in Super Religare Laboratories.

[12] In 2021, SRL Diagnostics acquired the remaining stake in its Kerala-based joint venture, DDRC, for ₹350 crore.

[14] Agilus has two reference labs one in Goregaon (Mumbai), and one in Gurgaon (Haryana), India.

[16] Along with this, the company also has large labs in Dubai, Sri Lanka and Nepal, and about 70 different collection points in various countries outside India.