Alok has earelier been at Microsoft and Symantec, had early experience at Reuters in Europe and Asia and was head of the Economist Corporate Network in Asia.
"In the two years since the LSE acquired us, we’ve seen our business grow, several fold," Weerasinge said in a statement.
"That’s not just a difference of degree, that’s a whole new kind of company.
"I've been running things with my senior team the same familiar faces ever since our foundation in 1996 and it’s now time to bring in some new fresh skills, to fortify ourselves.
"Having Amit take on the role of President & General Manager will allow me more time to promote MillenniumIT internationally, more time to drive the Group’s international development business and more time to focus on the delivery of our grow