Hello Aspirant ,

It depends from college to college and state to state , some top and famous government college requires very high rank(less than 1000) and some colleges can be achieved with very low rank through state quota .

On an average you can get a government  college with 600+ score through state quota and 650+ for college through All India quota .

Some top colleges like Top AIMMS require around 700+ scores .

Hope this helps.