Dear candidate

70 percent of seats will be based on the combination of JEE Mains score and board examination marks in which 25 percent contribution is JEE Mains and remaining 75 percent contribution is for 10+2 marks this is stream 1and remaining 30 percent seats will be based on normalized scores of 10+2 in stream 2 There is a chance for those candidates whose AIR is below 4000 as there are no detailed course wise cutoff exactly so, you have a chance to get into bioformatics

https://engineering.careers360.com/articles/sastra-university-btech-eligibility-criteria

Hope this Information is helpful