Nuclear weapons need regular maintenance to stay operational. They are made up of complex electronic and mechanical systems, including detonators and explosive triggers, which degrade over time.

India will be asking global multilateral agencies, including the IMF, to have a relook at funds and loans provided to Pakistan, as New Delhi seeks to corner the neighbouring state diplomatically following the dastardly terror attack in Pahalgam last month which killed 26 tourists.

Amid rising tensions after the Pahalgam attack that killed 26, Pakistan's PM Shehbaz Sharif and President Zardari vowed a strong response to any Indian aggression. India has pledged to hunt down the attackers.