Why trade deal between the US and India is relevant to the UPSC exam? What is the significance of topics such as the International Institute for Population Sciences, protests in France and Phobos on both the preliminary and main exams? You can learn more by reading the Indian Express UPSC Key for October 21, 2026.

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26 min readHyderabadOct 22, 2026 10:19 AM IST First published on: Oct 21, 2026 at 07:55 PM IST