किस बैंक ने सबसे पहले पारस्परिक दावों की निकासी, निपटान और हस्तांतरण (clearance, settlements, and transfer) के कार्य को व्यवस्थित रूप से विकसित किया था?

The Reserve Bank of India (RBI) was nationalised in which of the following years?

In which year was the 'Bank of Hindostan', considered the earliest modern bank in India, established in Calcutta?