'Ashura is a profound and instructive day in the history of Islam,' says PM

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Says some people disturbed by unity of govt, military

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The exchange of fire between the security forces and the terrorists lasted for 25 minutes

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Extensive security arrangements were in place across the city

Over 4,600 personnel deployed for security of 350 processions

Complying owners to get 10% blanket fee concession

Lahore has seen the deployment of over 10,000 police personnel for 81 processions