कौन सी नमूनाकरण विधि (Sampling method) गैर-संभाव्यता आधारित है और मुख्य रूप से तब चुनी जाती है जब किसी लक्षित आबादी के सदस्यों का पता लगाना कठिन होता है?

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?