hi aqib,

i would say never drop a year as it affects your resume in long term life whereas if you are getting any branch in any good college like nit ,i would suggest you to grab this opportunity and try to score around 9 cgpa in first year as you can change branch if you have a good cgpa and if you want you can again give the exam by preparing parallely as in first year you are totally free.

hope this helped out you,for more queries you can ask me

have a great future ahead