Hi Aspirant... Hope you are doing well.

According to your question, I am expecting that you have a keen interest in UPSC rather than Engineering but for the safer side, you want to pursue engineering along with UPSC preparation. My answer depends upon factors like:

• You will work hard for UPSC.
• You will clear UPSC with a good rank.

Doing two things together is difficult especially in engineering where you have to learn things practically.

Opting for Chemical Engineering would be better if you are serious about UPSC preparation but for a safe career, you should pursue Computer science engineering as it has a good scope everywhere. Don't get confused.

Just do anyone properly and with full dedication.

All the best to your future.

Good luck:)