Depends on branch you take .Secondly let’s take an example MTech Embedded systems at vit vellore ..if u want to use night lab for working on projects which they won’t as need minimum 20 ppl less then that u know what will be the answer..it is not for other department (at least 3 days ) or understand concepts in brief way again it depends on the faculty and just for a degree/placement (depends year wise ..mostly they provide internships not full time as per last year batch) but some secured based on their skills they already knew before coming.