I got 72.2% in CBSE Board 2018 in PCM. but I want to get admission in Delhi university with B.A(Economic). I giving improvement in 2019.
admission is totally based on the cut off so see the last year cut off first.
check all the cut off by going on the link
http://www.du.ac.in/cut-off.html
and their is not any problem if you given the improvement exam they will count your improved marks.
best of luck.