Dear Aspirant,

As you have both Biology and Math's in you 12th, there is alot of option and filed in open for you, first first thing you need to confirm by yourself is in which subject your are good at. Like if you like math's more then there is lots of option to get a job of high salary and job, here I'm listing some-

1- Get admission in any IIT/NIT/IIIT for engineering and crack a good placement package in reputed companies like Amazon, Google, Microsoft etc.

2- Crack NDA entrance examination to get a admission in NDA for Defense forces training and get is honorable and mostly respected job in India with high perks and salary.

And if you are good at Biology the go with the MBBS degree, crack NEET UG and get a top reputed government colleges to pursue your degree,

Or you can complete you graduation in any branch and start looking for UPSC or CDS or AFCAT or any banking exam or SSC CGl, they will provide you highly reputed post with strong salary.

Hope this will help you, All the Best!!!