When was India's first multi-purpose river valley project launched?

Lake of Rajasthan which is not of fresh water is?

'Education psychology is the gradual study of educational development.' Which psychologist gave this definition?

Where is Raj Pithora fort built by Tomar Rajputs?

Whose period is called the Golden Age of Mughal Painting?

One is the largest ocean in the World

In which country, for the third time, a nationwide lockdown has been imposed for the third time in view of increasing cases of Corona virus?

Which state of India is the leader in terms of length of concrete roads?