If we shout or clap near a suitable reflecting object such as a tall building or a mountain, we will hear the same sound again a little later. This reflected sound which we hear is called a/an:

Which movement aimed to promote Khadi, a hand-spun and handwoven cloth native to India?

Who were prominent leaders associated with the initial phase of the Telangana Rebellion (1946-1951) against the Nizam's rule and feudal landlords?

What was the immediate trigger for the Revolt of 1857?