Which of the following has become the first city in India to provide drinkable water through taps?

Which of the following Indians has been appointed as the chairperson of the United Nations Advisory Board on Disarmament Matters?

Which of the following countries recently withdrew from seven United Nations agencies due to alleged discrimination?

The book titled ‘Sing, Dance and Lead’, which was launched by Vice President CP Radhakrishnan, was written by whom?

On which of the following days is World Hindi Day celebrated every year?