hi gowtham , 

thank you for approaching us . 

 MINIMUM ELIGIBILITY CRITERIA FOR UG COURSES IN IIST.

Only Indian citizens are eligible to take admission in UG courses offered at IIST. Candidates meet IIST admission eligibility criteria if they have secured minimum 75% aggregate marks in their Class 12 Board exams or equivalent examination. SC/ST/PwD category students can apply if they have secured at least 65% aggregate marks in the qualifyinge exam.

so , if you have the above eligibility then you can get a seat.

KEEP UP HOPE

ALL THE BEST:)