JEE Main paper analysis of Feb 26 evening shift: Questions based on NCERT concepts, check details here Check detailed JEE Main 2021 subject-wise report based on the inputs provided by students. advertisement UPDATED: February 27, 2021 11:10 IST JEE Main paper analysis of Feb 26 evening shift: Questions based on NCERT concepts, check details here HIGHLIGHTS Most of the questions were either directly taken from NCERT or were closely based on NCERT concepts. The Chemistry paper was easy to moderate; almost all the topics were covered. In Physics, some of the questions involved lengthy calculations, but overall, it was an easy to moderate level of paper.