I can think of two parameters where a college can be strict : Academics and Administration. There might be more but I’ll focus on these two.
Academics: One might think that academics at BITS are very liberal especially due to the fact that officially there is no minimum attendance requirement in any course so other components must also be leniently dealt with. But that is not true. Many courses have 5 or 10% marks for attendance. Besides there are components of evaluation such as quizzes, assignments and homework that aren’t compromised (ie, if missed you don’t get to give them again). Missing of Tests 1/2 or comprehensive exams is only accepted for serious medical or family issues. Missing a comprehensive exam results in ‘Not cleared’ grade in that subject usually and you can do nothing about it unless you had unavoidable reasons to do so.
Although not all departments are equally rigid in grading (Some are little more tough than others), they all follow some basic guidelines that cannot be messed up with. For eg. the evaluation of tests is very transparent with availability of answer sheets after checking and facility of recheck requests, but if you don’t collect your answer sheet on prescribed day then there is little chance that you will be allowed to submit for recheck.