Defence minister Arun Jaitley's threat to impose costs on Pakistan for its "adventurism' in firing at Indians along the Line of Control and the International Boundary here has led to questions on what these costs might be.

Assessments by The Telegraph after talking to military and paramilitary sources along the border in Jammu point to Indian firing taking a toll on Pakistani "administrative bases' with a "collateral damage' on civilians across the Line of Control.

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