IET Lucknow earlier used to have a very lenient approach towards attendance. But since the new director has joined the institute, Mr. H.K Paliwal has mandated that students should have an attendance of at least 75% throughout the semester to attend the exams and the tests.
If you have attendance lower than 75% then you may be discarded from giving tests and exams. Even final-year students have suffered from this new rule. So I would suggest not to mess up with this.