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