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Welcome to eGyanKosh, your comprehensive resource for educational materials. In this section, we present **खंड-4 जैव प्रौद्योगिकी – तकनीकें और अनुप्रयोग**, designed specifically for students pursuing their studies through Indira Gandhi National Open University (IGNOU) in 2025. This study material offers an in-depth exploration of biotechnology techniques and applications, enabling learners to grasp essential concepts and enhance their understanding of this rapidly evolving field. With easy access to free downloadable resources, students can effectively prepare for their courses and deepen their knowledge in biotechnology. Explore the wealth of information available and embark on a journey of academic excellence today!