A recruitment document understood to be written by ISIS militants has revealed the terrorist group's plans for all-out war to bring about 'the end of the world'.

The Urdu document, passed to the American Media Institute by a Pakistani citizen connected to the Taliban, reveals the scale of the ambition of ISIS, including targeting India to provoke the U.S. to intervene.

It details how they are urging the units of the Pakistani and Afghan Taliban into one army with ISIS, and asking al-Qaeda to join ISIS to forge a caliphate.

Recruiting: A document found in Pakistan and understood to be written by ISIS militants has revealed the terrorists group's plans to entice the U.S. into battle by targeting diplomats and launching attacks on India

Brutal: The document proclaims the caliphate will 'survive and prosper until it takes over the entire world and beheads every last person that rebels against Allah (pictured: Egyptian Christians held captive by ISIS)

'Accept the fact that this caliphate will survive and prosper until it takes over the entire world and beheads every last person that rebels against Allah,' the document, seen by USA Today, reads.

Preparations for an attack on India are underway, it adds, which ISIS leaders hope will end with a war with the U.S.

'Even if the U.S. tries to attack with all its allies, which undoubtedly it will, the ummah [world's global community] will be united, resulting in the final battle', it adds.

The pamphlet outlines a plan to target U.S. soldiers as they pull out from Afghanistan, kill American diplomats and attack Pakistani officials.

U.S. intelligence officials have reviewed the document and say they believe it is authentic, based on the language used and a series of 'unique' markings.

Attack: The document, which has been reviewed by US intelligence officials, said preparations for an attack in India - which they hope will draw the U.S. into battle - are well underway

MailOnline in India revealed security forces in the country have stopped more than 25 Indian citizens from joining ISIS, after they were radicalized by the terror group.

Security officials closely monitored their lives but have decided not to arrest or charge the would-be jihadis with any offence, as part of a new strategy to try and de-radicalize them.

In June India's defense minister Rao Inderjit Singh said ISIS' bulging bank balance means it could potentially buy a nuclear weapon from Pakistan.