Hello Aash

Well the difference is quite marginal and it depends on person to person whether these differences are positive to an individual or not.

1. First Shift starts at 8:00 am and ends by 2:30 pm where as Second shift starts at 11 pm and ends by 5:30 pm.
2. First shift has a higher cutoff due to which you will get good and competitive batchmates that may not be the case in Second shift.
3. Having said competitive means that Students of First shift are generally a little more college oriented. They attend a lot of lectures due to which there are fewer mass bunks as compared to Second shift.
4. The faculty in First Shift is quite experienced as compared to Second shift but at the same time they are a little strict about Attendance and Lab work.