Sharif made the remarks while chairing the Formation Commanders Conference in Rawalpindi comprising top military commanders to review the ongoing operation against militants in the country.
The forum took "serious notice of recent Indian hostile rhetoric coupled with their covert & overt actions to destabilise Pak", Military spokesman Major General Asim Saleem Bajwa said in one of seven tweets regarding the conference.
The commanders also discussed the threat by India in the light of recent anti-Pakistan "rhetoric" by Indian leaders.
"Regrettable, Indian politicians not only indulge in actions violating UN Charter, but also take pride in claiming interference in others affairs," he said in yet another tweet.
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The comments came in the backdrop of Prime Minister Narendra Modi's remarks against Pakistan in Dhaka and saying it was aimed at fanning hatred and souring its ties with Bangladesh.
About the 'Operation Zarb-e-Azb', Bajwa said terrorists were dislodged from strongholds in North Waziristan and Khyber and the fight was now moving to last few pockets of resistance which are close to Pak-Afghan border.
Pakistan launched the military operation last year and has so far killed about 2,000 rebels, according to the army.