Indian High Commissioner in Islamabad Ajay Bisaria and some other senior diplomats of the Mission are being subjected to "aggressive surveillance" and "harassment" there, prompting India to lodge a strong protest with Pakistan on Monday.
In the note, the MEA said Bisaria and Deputy High Commissioner J P Singh were "closely followed and aggressively kept watch by a Pakistani security official during a wedding reception" at a hotel in Islamabad on December 4, last year, the sources said.
"In one such incident, people impersonating his relatives tried to hack his accounts. Fake profile similar to that of his relative was used," the sources said.
There have been similar incidents of harassment meted out to Indian diplomats in Pakistan by the security agencies there.
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