एक सरल वृत्ताकार वक्र (simple curve) में, वह बिंदु जहाँ संरेखण (alignment) वक्र से बदलकर पुनः सीधी स्पर्शरेखा रेखा (tangent line) में परिवर्तित हो जाता है, कहलाता 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?