Hello Aspirant,

Hope you are doing well!

With 80 percentile in CAT, you chances stand very weak as a minimum of 85% keeps you on a safer edge. Previous year IIIT cut-offs also lie between 85-88 percentile.  The other eligibilty criteria include minimum aggregate of 65% marks (55% marks for SC/ST/PD) from a recognized university.  I would suggest you to look for some other college or appear for CAT next year if you are willing to go for IIIT Allahabad.

Hope this clears your doubt. Fee free to reply back for any concerns. All the Best!