hi,
see cutoff score changes every year and it depends on certain factors like number of applicants, questions difficulty level, seat matrix, students category and so on. however you need to apply for colleges to get the best possible out come. another thing is since you did not complete bachelors degree in science stream, that may be a issue to admission process.
nevertheless you may apply for private institute like lovely professional university, vit vellore, srm university as well.
To know about complete list of probable college name, based on your score, category please use Careers360 college predictor tool,
https://engineering.careers360.com/gate-college-predictor?icn=QnA&ici=qna_answer
Eligibility | Application | Exam Pattern | Admit Card | Preparation Tips | Books | Question Paper | Accepting Colleges
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile