How can we find the BSc previous year’s questions of Utkal University?

You should check your college library, usually, all leading college libraries get a copy of past years’ papers as a master copy. You can also collect it from your seniors. Get in contact with your seniors through social media or college ex-association. 

You should note that Utakal University changed its examination pattern a few years backs. Students who got admission from 2016-17 academic year give examination in semester format. Previously, exams were in yearly format. So, it’s better to collect question papers from recent graduates.