Usually the banks continually like Non-Priority Sector for disposal credit. Now also this trend is going like that only. It consist all the sectors that are not listed in Priority sector. Priority sector disposal is projected to supply recognized credit to the sectors and sections that it's tough to acquire credit. This present study relating to the role of priority sector and Non-Priority sector NPAs in aggregate NPAs and also evaluate trends in Priority & Non Priority Sector NPAs of Nationalized Banks in India. In addition to this examine whether there is a big impact or not of priority sector NPAs and Non-priority sector NPAs on aggregate NPAs of Nationalized Banks and determine the result of gross advances on NPAs of Nationalized Banks. This study conducted on secondary information. The applied mathematics tools like ratios, correlation test, t-test, regression were used for the study with the assistance of the SPSS package. © BEIESP