it is compulsory to get 75% in 12th state board for iiest
This year specifically NTA , IIT as well as JOSAA Board decided to remove the 75% criteria for Admission in IITs,NITs and GFTIs. Hence as far as 2020-2021 Admission process is concerned, you can get admission at IIEST Shipur with less or more than 75% in Board Exams. All the Best.
For more information and college prediction do follow the link below
https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer