Abstract
This paper sightsees the relevance and significance of the biopsychosocial and psychodiagnostic models in comprehensively assessing individual mental health. The biopsychosocial model emphasizes the intricate interplay between biological, psychological, and social factors in understanding and treating mental health conditions. It acknowledges the interconnectedness of these domains, recognizing that a holistic approach is essential for effective intervention. In contrast, psychodiagnostic models focus on identifying specific patterns of symptoms and behaviors to diagnose mental disorders. While these models provide a structured framework for classification, their limitations in capturing the hints of individual experiences and the broader context of mental health issues are discussed. By integrating the strengths of both models, mental health professionals can gain a deeper understanding of individuals' mental well-being, leading to more tailored and effective treatment plans. In conclusion, the relevance of the lay knowledge in understanding the phenomena of mental health and mental illness, there is need for a common link or thread that bridges all these gaps and helps Bio-psycho-social Model and psychodiagonstic model to look into the issues that needs to be addressed. Therefore, it cannot be concluded that any specific model is better than the other rather; an eclectic view is desirable that incorporates, features from different models that best suits the nature of intervention. Therefore, it is recommended that, Clinical Settings, Clinical Psychologists and other health professionals should embraced used of bio-psychosocial skills and psycho-diagnostic evaluation as a key approach to mental health of an individual because, there is no doubt that this method of thinking is a useful skill in itself and one that can prove essential in later clinical practice.

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