Hello shivam

For the rank you have achieved in BSC maths group you can get seat in government colleges and in au with the subject statistics as you prefer with the category you belong to. That is as you belong to general category you can expect your seat in few government colleges and in au. As you have chance of getting seat in few colleges so choose the right college in which it has best placement, best ranking , faculty, management. For more information about the colleges and courses please go through the below link

https://www.careers360.com/college-predictor

All the best