The poor management of rivers and rainwater has caused regular floods in the northern districts and drought in the southern districts of Bihar, which has further resulted in unbalanced growth among the different regions of the state in terms of both agricultural and social development. After forming a development-oriented government in 2005, the successful implementation of three consecutive Agricultural Roadmaps (2008 onwards) and two consecutive Saat Nischay schemes (2015 onwards) has tried to establish the regional balance somewhat. However, despite these efforts for agricultural and social transformation, the level of development is not the same across all the districts or regions of the state. Therefore, to understand the root cause of regional imbalance, this study aims to analyse the inter-district disparities in agricultural and social development through the principal component analysis. For this, the secondary data on twelve-twelve indicators of both the dimensions were extracted from the 'Directorate of Economics and Statistics, Department of Planning and Development, Government of Bihar’, and 'State Level Banker’s Committee’ of Bihar for 2021-22. The analysis revealed the presence of a high degree of disparities across regions. Such as, in the case of agricultural development, the districts of the central-east region were in the highly developed category while the districts of the southern region were in the least developed category. Whereas, in the case of social development, the districts of the central region were in the highly developed category while the districts of the southern, and north-eastern regions were in the least developed category. Further, the significant value of Spearman's rho (.645) also describes about the strong positive correlation between agricultural and social development in Bihar. Thus, to ensure regional balance and societal harmony the government should frame the district-specific policies with interlinkages between the agricultural and social development policies.