The Government Schools Teachers’ Association (GSTA) has urged Delhi Education Minister Ashish Sood to withdraw show-cause notices issued to teachers over the decline in the CBSE Class 12 Board examination results this year. Delhi recorded a decline in overall performance this year, with the pass percentage dropping to 91.97% from 95.18% last year. Of the 3,01,977 students registered in the Capital, 3,00,732 appeared for the examination and 2,76,583 passed. The Capital’s two CBSE regions — Delhi-East and Delhi-West — both witnessed a fall in results. Delhi-West recorded a pass percentage of 92.34%, down from 95.37% last year, while Delhi-East fell to 91.73% from 95.06%. The association said it had earlier suggested that the OSM system should first be introduced on a pilot basis and expanded only after assessing its feasibility and effectiveness.…