CBSE 10th

You have a decent but you need to have a very good XAT result.

There are specific eligibility criteria that an applicant must qualify if they aim to pursue this programme of M.Sc. In Chemistry. Candidates must have passed the examination of higher secondary levels with a minimum score of 60% from any recognised school or college. Applicants must have a degree of B.Sc. Chemistry ones for B.Sc. Chemistry as one of the main subjects with at least 50%. Few colleges conduct an entrance exam before admissions.

Yes, you can try as the cutoff also varies yearly.

Your profile is very nice. You should at least try for 90+ percentile. And it's quite simple thing the more percentile you achieve the chances to get into a top colleges is increased.

477.5 is not a bad score you can still have chances to convert into a good B school with a good GDPI e performance.

No, the board from which you studied does not matter if you are aiming for a foreign study and actually passed the board with Good percentile. Colleges always prefer high-rankers rather than a particular board students. Hence, the State, CBSE or ICSE board is irrelevant while applying for colleges abroad.

There is a very high chance to get IIM -B at 99 percentile but you should have to work very hard for it. You should also focus on your profile building as it's very important for getting a call from top IIMs.

Do some ITI courses for skill and career upgradation. Few courses are given below.
1. Electrician
2. Plumber
3. MMV
4. Welder
5. Diesel Mechanic
6. Wiremen.