भारत में, किस संगठन को 'अंतिम ऋणदाता' (Lender of the Last Resort) के रूप में जाना जाता है?

Which financial institution merged its housing finance subsidiary, HDFC Ltd, with itself to create a unified banking entity?

Which organization completed the acquisition of a 51 percent controlling stake in IDBI Bank in January 2019, changing its status to a private sector bank for regulatory purposes?