Asserting that the air quality of the national capital and other cities has worsened beyond all norms, President Ram Nath Kovind on Tuesday said hydrocarbon energy has changed the world's face in the last couple of centuries and now it is threatening 'our very existence'.

Air quality of national capital has worsened beyond all norms: President Kovind

Last year, India was ranked 130 out of 190 countries in World Bank Group's annual report on the "ease of doing business"

Ease of doing business: India's rankings zooms to 100 in World Bank report, up 30 places

India has improved considerably on the ease of doing business index, according to the latest World Bank rankings released on Tuesday.

Ease of doing business: How World Bank ranks countries