Why distinction between commercial and political capitals in some states?

1.       Unlike newly created capitals, are there some generic reasons/patterns which together justify the separation of Financial and State Capitals in older States? Example- Indore v/s Bhopal (MP), Gandhinagar v/s Gujarat (Gujarat), Delhi v/s Mumbai etc

There is no connection at all! While the cities evolved where there was trade and commerce, the 'capital' cities were imposed by the government, considering the strategic factors. Commerce and strategic factors need not be same, and most of the times they are different!

The pattern is: capitals are made in a way that they are easy to reach, and they can sustain themselves. Whereas commercial capitals evolved.

Can’t we leverage Commercial advantages of a financial capital and make it into a Strategic capital? Pretty much like a brownfield project? Why start afresh like a Greenfield one?

Strategic and political

Political reasons

Andhra Pradesh can continue with Hyderabad. But they are not. Why?

They want to show they can create a capital like Hyderabad

But what about say- Gandhinagar v.s Ahmedabad? or Bhopal v/s Indore?

Bhopal was seat of power. You can't control bastar from indore. People won't agree.

So the reason is symbolic?

No. Realpolitik

Strategy includes connectivity too