World Tsunami Awareness Day is observed on which of the following days?

In which country will the Punatsangchhu II Hydroelectric Project be inaugurated by Prime Minister Narendra Modi? 

Swachh Survekshan 2025: Which city has been declared the dirtiest city in India?

Which country has recently become the third largest country in the world in terms of pipeline of clean industrial projects?

At which of the following places was a two-day national conference on Watershed Festival organized?