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Welcome to eGyanKosh, your go-to resource for academic materials and study aids tailored for students of IGNOU. In this section, we present Unit-27 on “सामान्यता और असामान्यता” (Normality and Abnormality), a crucial component of your curriculum. Designed for the academic year 2025, this study material provides comprehensive insights and in-depth understanding of key concepts, ensuring that you grasp the essential theories and applications. Best of all, you can access this invaluable resource for free, making it easier than ever to enhance your learning experience and succeed in your studies. Dive in and explore the wealth of knowledge that awaits!