Class 11

You will have to mention them for some courses and universities in the US but mostly 12th grades are considered.

See the college website & check the eligibility. If you are eligible, then you can go ahead & apply.

Dear Sinjoy, you may opt for Computer Science if you are interested to do Engineering after 12th. Every branch of Engineering is interlinked with Software and digital devices . So, if you can have strong basics in Computer Science from 11th onwards will enables you better understanding in academics

Hi!
Please mention the stream that you have taken in class 11.

Hi,
None. Government job exams can only be given once you are a graduate.

PNB does not offer class 11th. Kindly refer to the link below:
https://www.pnbiit.ac.in/index.php.

Hello,
It is better to join Arts Subject such as History, Political Science, Geography for becoming IAS officer. But, it is all upon you to choose subject as now recent result B.Tech students also score good result in UPSC, so you can choose a subject of your interest not by the suggestion of other because after all you have to study the subject chosen for at least 5 year (2 in 12th and 3 in Bachelor's). All the Best.

If your percentage is really good, I would suggest you to take Science stream in you PUC, but it is just a suggestion and you decide on the basis of your interests on what you want to do.