New Delhi: In a major development, terror outfit ISIS has joined hands with Canada-based Sikh militant outfits for a major terror attack in Delhi, sources said.

Reportedly, these Sikh militant outfits are hiding in Canada.

The attack input has come to light after intelligence agencies intercepted telephonic conversation of a woman Sikh terrorist.

The intercepted conversations mention Delhi as the main target, intelligence report said.

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Earlier, there were reports that ISIS may attack India using Pakistan sleeper cells and counterfeit money.

The rapid increase in activities of ISIS in India's neighbourhood, particularly in Maldives and Bangladesh, has risen the fear of its impact in India.