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Welcome to the eGyanKosh page dedicated to Unit 30, focusing on the concepts of हेत्वाभास (hetvabhaasa), छल (chhal), जाति (jaati), and निग्रहस्थान (nigrahasthaan) as part of the IGNOU 2025 curriculum. Here, you can access comprehensive study materials that delve into these critical philosophical ideas, designed to enhance your understanding and academic performance. Whether you’re a student seeking to deepen your grasp of these topics or a learner eager to explore the rich history and theories behind them, our free downloadable resources provide the perfect starting point for your studies. Embrace your educational journey with the support of eGyanKosh!