Settlement of bank liabilities and ensuring clearance

I defaulted on a personal loan due to loss of job in 2016. Then via my friend and transfer of POA filed case for settlement. I paid money to a friend for settlement.

Wanted to understand if I settle my case through court does the bank give a clearance letter?

My friend has submitted me an immigration clearance letter and also PCC.

Should I consider my self clear from all legal liabilities on the basis of immigration clearance and PCC?

Can the bank re-apply for the case against me in future? How can I close my bank account?

Are the immigration ban and travel ban the same?

What should I do to re-assure that everything is legally right?