Pakistan said its nuclear programme “cannot be limited” and the world should first put an end to India’s atomic activities, a day after the US asked Islamabad to exercise restraint in its nuclear ambitions. Pakistan’s Permanent Representative to the UN Maleeha lodhi, addressing a joint press conference with Foreign Secretary Aizaz Chaudhry, said US Secretary of State John Kerry had urged Prime Minister Nawaz Sharif to limit Pak’s atomic programme.