Hello Aspirant,

Your exact rank cannot be precisely predicted. As your KCET 2021 score is 72 marks(PCMB),  so your expected rank will be in range of 5500-8000 . Although it is expected rank, actual rank may differ from it. With this rank you've chances of getting seat  in good engineering college.

For further details regarding kcet 2021 marks vs rank go through following link:

https://engineering.careers360.com/articles/kcet-marks-vs-rank

You can also predict your college for KCET 2021 by following link:

All the best!

Hope this helps you