Hello,

It is based upon your interest and skills. Both the fields are good and can provide you employment. If you are good at maths then go for it just bsc degree is not enough but so you can do Msc or MBA or any other field and then you can work in corporate field if you choose to do MBA after Bsc you can do Banking jobs or any other market related jobs. If you have interest in Physics then do it from a good institute and then make sure you have good skills. You can work in many Research institutes or in any college/institute as teacher.

Check out these links

https://university.careers360.com/colleges/list-of-bsc-in-mathematics-degree-colleges-in-india

https://university.careers360.com/colleges/list-of-bsc-in-physics-universities-in-india

Thanks

Both are best and have their own importance , choose in which u are interested