There are no such good government colleges accepting MAT scores. Government colleges like IISc Bangalore or the like accept CAT scores only. So if you want admission on the basis of mat scores and are looking for a college that would give you decent placements then the only option is going for private colleges like 

MS Ramaiah Institute of Management 

ICFAI Bangalore 

AIMS Institute 

Manipal Academy for higher education 

NITTE school of management 

If you are looking for a degree in Finance then the best choice will be ICFAI Bangalore since the group is best for financial management course.