“There have been a large number of inputs over the last couple of months,” U.K. Bansal, Secretary, Internal Security, told media. “All these put together could be an opportunity, which anti-India elements could exploit.”
“We are sounding an alert,” Bansal added.
Indian authorities say they have taken measures to ensure the high-profile tournament is safe.
India suffered one of its worst militant attacks in 2008 when Pakistan-based gunmen carried out coordinated attacks across Mumbai, killing 164 people.