Sri Lanka's Timex Garments had sold an 80 percent stake to Aegis' parent Essar Services Holdings Limited.
"Ismart Timex is one of the largest BPO service providers in Sri Lanka and we expect it to grow exponentially to more than double in voice, back office, especially F&A (finance and accounting) in the next one year," Aegis chief executive Aparup Sengupta said in a statement.
"Aegis will now offer services from 35 delivery centers across the world."
Arshad Sattar, Managing Director, Ismart Timex managing director Arshad Sattar was quoted as saying that Sri Lanka has a "rich talent pool for voice, back office and shared services business."