Hello,

Choosing your branch should be completely your choice as no one apart from you knows better about your interests. If you are interested in electrical related stuff, you can choose MNIT Jaipur. If you want to study in deep about metallurgical engineering, you should go for Metallurgical engineering at IIT Kharagpur. If you have no inclination towards either of the branches, you can try to choose Metallurgical engineering at IIT Kharagpur because of the academics and opportunities provided by IIT Kharagpur. But once again, both the options provided by you are great and you should decide what to choose according to your interests etc. So, choose your branch wisely.

I hope it helps.