Looks a little difficult especially this year when the cutoffs have risen high considerably. However the final cutoffs are yet to be displayed. Obviously it depends on the number of aspirants, their results, your rank, etcc. But in general as per the previous year analysis with 63% in HSC, admission to Narsee Monjee college looks a little difficult.
Refer to the site below to know more about the same -
Best wishes. Thank you.