The Reserve Bank of India (RBI), as the central bank, exercises comprehensive regulatory and supervisory control over commercial banks. This includes managing their liquidity through various monetary policy tools and reserve requirements, approving or directing branch expansion to ensure equitable credit distribution and financial inclusion, and overseeing mergers and amalgamations to maintain financial stability. Furthermore, the RBI has the authority to initiate the winding-up process for banks that are unable to meet their obligations or pose systemic risks.