Which bank has been ranked as the most valuable bank in terms of market capitalisation? 

HDFC Bank has become the second most valuable company by market capitalization, overtaking Tata Consultancy Services.   Reliance Industries is the country's most valued firm with a market valuation of Rs 17,72,455.70 crore, followed by HDFC Bank, TCS, ICICI Bank (Rs 6,96,538.85 crore) and Hindustan Unilever (Rs 6,34,941.79 crore) in the top five order.   HDFC Bank is also the country's most valuable bank by mcap followed by ICICI Bank, which commanded a market valuation of Rs 6,96,538.85 crore, and State Bank of India (Rs 5,44,356.70 crore).