HDFC Bank Limited is an Indian banking institution with operations across Treasury, Retail Banking, Wholesale Banking, and Other Banking Business. Its largest share of revenue comes from the Retail Banking segment, which serves individual customers through its branch network and other channels. This segment focuses on mobilizing customer deposits and providing loans and related banking services across a range of product categories. The bank also delivers wholesale banking services to corporates, government bodies, and other enterprises, earns income from treasury activities, and engages in para-banking operations such as credit cards and debit cards. Geographically, the majority of the company’s revenue is derived from its operations in India.