HDFC Bank Ltd. engages in the provision of banking and financial services, including commercial banking and treasury operations. The company is headquartered in Mumbai, Maharashtra. The company went IPO on 2001-07-23. The Bank caters to a range of banking services covering commercial and investment banking on the wholesale side and transactional/ branch banking on the retail side. The Bank's Treasury segment primarily consists of net interest earnings from the Bank's investment portfolio, money market borrowing and lending, gains or losses on investment operations and on account of trading in foreign exchange and derivative contracts. The Retail Banking segment serves retail customers through the Bank's branch network and other channels. The Wholesale Banking segment provides loans, non-fund facilities and transaction services to large corporates, emerging corporates, public sector units, government bodies, financial institutions and medium scale enterprises. The Other Banking Operations segment includes income from Para banking activities, such as credit cards, debit cards and third-party product distribution, among others.