Hello,

To attend Banking sector, the minimum qualification is Graduation. So your marks in UG (or PG, if you do it) will be of more importance than Class 12.

For Police job, if you are applying for Constable, then the minimum qualification is Class 12 and hence, they will be important. For any higher posts, the eligibility criteria is Graduation and those marks will be considered.

However, if you happen to sit for a personal interview for any post, you should be able to justify the marks that you have secured in Class 12 also.

Hope this helps.

Thanks.