Hi Amitabh,

B.Tech is usually a  4 years course and it consists of 180 credits. However, if you are unable to do it within 4 years (due to backlogs, taking a break, or any reason whatsoever) you will have extra 3 years to complete all your credits.

In your case, since you dropped out in 2014, already 8 years will have passed by in 2022 and you will be tagged as NFTE (Not Fit for Technical Education). Unfortunately, once you get this tag you can't join in any professional course.

Nevertheless, you can still upskill yourself by pursuing different certification courses which will definitely help you with your jobs.

Hope this was helpful.