As UPSC CSE Prelims 2026 is just a month away, current affairs should be your primary focus.  UPSC Weekly Quiz  is a current affairs–based quiz on relevant topics from the past week, curated for aspirants of competitive examinations. Attempt the weekly quiz every Saturday and find detailed answers to the MCQs with explanations. Gear up for UPSC Prelims 2026—Practice smarter, revise faster, and succeed with our  Special Quiz Magazine . ( Click Here ) 1. Odisha 2. Jharkhand 3. Chhattisgarh 4. Telangana Why this question for UPSC Prelims 2026? This question is relevant because the Mahanadi river dispute has been in news due to tribunal proceedings and water-sharing concerns. It tests mapping skills and river-basin awareness. Such questions also connect to federalism and Centre–State relations.…