Correct Answer: Karnataka
Subject: 2025
Explanation: <b>Key Fact</b><br>Karnataka is the largest producer of ragi (finger millet) in India, accounting for a major share of total national output.<br><br><b>Additional Info</b><br>Topic: Crop Production.<br><br><b>Why the other options are wrong</b><br>Option A: Correct.<br>Option B: Rajasthan is the leading producer of bajra and mustard, not ragi.<br>Option C: Tamil Nadu produces ragi but ranks behind Karnataka.<br>Option D: Andhra Pradesh is a notable producer but not the leading one.<br><br><b>Exam Trick</b><br>Ragi = Karnataka; Bajra = Rajasthan.<br><br><b>Final Answer</b><br>Option A — Karnataka.