Tata Consultancy Services Ltd. has annouced the evacuation of staff from two of its software development centers around Chennai in southern India, after authorities issued a tsunami warning following a massive earthquake off the coast of Sumatra.

"As a measure of extreme caution, we have evacuated all our employees from two of our large facilities around Chennai," India's largest software exporter by sales said in a statement.

It wasn't immediately known how many employees it has in the two facilities.