hey student 

in year 2018 the minimum cutoff in kerala for OBC category was 118-96 marks out of 720 that is 40% percentile. in year 2017 the minimum cutoff in kerala for OBC was 130-107 marks out of 720 that is 40% percentile. the score depend on difficulty level of NEET exam in that particular year. in 2017 the difficulty level was quite easy therefore the cutoff is high. 

however you can predict your college for 2019 by using think link https://medicine.careers360.com/neet-college-predictor?icn=NEET_clgpd&ici=NEET_text-mapping . if you are still unsatisfied with the answer do ask again. 

thank you. goodluck.