Why do you want to opt for engineering? Is it because you enjoy Physics, Chemistry and Mathematics? If that’s the reason, then there are two possibilities for you.

Joining IIIT Sri City for CSE-

• You can sharpen your coding skills and work better on Computer Science learning more about ethical hacking, cybersecurity, etc. This is how CSE would prove to be fruitful to you.
• But if we perceive the other side of the situation, if you do not hold any interest here, you might find it hard to cope with and eventually lose interest. Since IIIT Sri City is a new college, it will not be able to impart the essential communication/soft skills to you.

Joining Chemical Engineering at MANIT Bhopal-

• Apart from developing a great interest in Chemical Engineering, you have the opportunities to either go for higher education via GRE or ensure placement via GATE.
• But again, comparing the other side of the situation, if Chemical Engineering does not spark your interest, you can go for other domains like Management. MANIT offers all the adequate communication/soft skills that would be essential for that.

If you have no particular inclination, then choosing CSE may be better. As it has two domains, i.e. coding and non-coding. Plus, the internet is full of great ebooks and tutorials to teach you.