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British special forces are waging psychological warfare against the terrorist death cult – using Bollywood music.

Troops have blocked ISIS radio communications in Libya by playing bhangra music – which the extremists have banned under sharia law.

British and Libyan soldiers also dumped two cars with Bollywood music blaring out near the ISIS stronghold of Sirte to annoy the killjoy jihadis.

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It is believed that the idea came from a Pakistani-born army intelligence officer embedded with the British Army – who understood how much ISIS hates Bollywood music.

As well as tormenting the fanatics, the musical new weapon is also helping reveal their hiding places.

When the jihadis complain about the music over their radios, it gives away their precise location.

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A senior military source the Mirror: “We needed to unnerve militants and at the same time use some sort of passive measure to gauge their force strength in the area we are working and it went well.”

The militants imposed sharia law inside Sirte, banning anything western.

Bollywood music is popular in Muslim countries such as Pakistan and Afghanistan – but is seen as a huge insult to ISIS.

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British special forces are currently in Libya in a non-combat role, training the nation’s forces in how to wipe-out ISIS.

The SBS – sister agency of the SAS – is training troops in how to drive out the Islamic State fighters from the town of Sirte and a 115-mile stretch of the Libyan coastline.

The UK troops will only launch an assault on ISIS if they are attacked first.

It is believed ISIS, who have held swathes of coastal Sirte for 20 months, have around 4,000 insurgents in the region.