Describe the key points of the revised Global Air Quality Guidelines (AQGs) recently released by the World Health Organisation (WHO). How are these different from its last update in 2005? What changes in India's National Clean Air Programme are required to achieve these revised standards?

Petroleum refineries are not necessarily located nearer to crude oil producing areas, particularly in many of the developing countries. Explain its implications.

What are the key features of the National Clean Air Programme (NCAP) initiated by the Government of India?

Discuss in detail the photochemical smog emphasizing its formation, effects and mitigation. Explain the 1999 Gothenburg Protocol.

Explain the difference between computing methodology of India’s Gross Domestic Product (GDP) before the year 2015 and after the year 2015.

“Investment in infrastructure is essential for more rapid and inclusive economic growth.” Discuss in the light of India’s experience.

Do you agree that the Indian economy has recently experienced V-shaped recovery? Give reasons in support of your answer.

Distinguish between Capital Budget and Revenue Budget. Explain the components of both these Budgets.

How and to what extent would micro-irrigation help in solving India’s water crisis?

What are the present challenges before crop diversification? How do emerging technologies provide an opportunity for crop diversification?