Hello,

The best stream to select if you want to pursue a career in artificial intelligence would be CS or CSE (depending upon the university of application). Keep in mind that IT and CS may be considered similar but for a postgraduate qualification in artificial intelligence either in India or abroad, a bachelor's qualification in CS would be more usefull and have a greater number of common topics and subjects as that of your prospective postgraduate.

On the other hand, for a career in nano-technology; there are different stream options as per your requirement. The best stream to opt for is a BTech in nano-technology, but this stream is not offered at most universities in India. In such a situation, if the university which you plan on applying to doesn't offer a undergraduate qualification in nanotechnology, then you should opt for a Btech in materials or in electronics. Subsequently, you can pursue a masters in nanotechnology, preferrably abroad. In this situation, you should ensure that you do sufficient projects and co-curricular activities from the first year of Btech so that you can build a strong profile and gain admission to one of the best engineering colleges in the world for your postgraduate education.

Hello Dear

Go with the stream Artificial intelligence. This field has a boom in India as well in World too . Top companies like Google. , FB , Microsoft are working in the technology of AI only. So if you are able to get master yourself in the field of AI then it will increase your chances for getting the good job.

All the best