Hey,
Every year the cutoff generally changes based on various factors like  number of candidates appearing for the examination,the category of the candidates as well as the difficulty level of the question paper.
This year also the cutoff is expected to be higher
but it is bit difficult to predict the exact number by which the cutoff would increase in Father Muller Medical College. So,you should wait for the cutoff to be declared.
However,I am providing below the link of the NEET College Predictor that will help you know about your chances in the medical colleges at your rank:
https://medicine.careers360.com/neet-college-predictor?icn=NEET_clgpd&ici=NEET_text-mapping
Hope this helps.
Good luck.

Dear aspirant,

According to your query,

This can't be expected as every year the cut-offs are rising . This depends on no. Of candidates and difficulty level of the paper so you can't expect right now. But giving you an estimated figure then it may rise from 20-30 marks this year.

Hope you find it useful.

Thank you.