The city of Purnia in the Indian state of Bihar also functions as the administrative headquarters of both the Purnia district and the Purnia division. It is located in the Kosi- Seemanchal area of Bihar. Purnia hosts several military bases such as Indian Air Force, Indian Army, three branches of Indias Central Armed Police Forces, the Border Security Force, the Sashastra Seema Bal and the Indo-Tibetan Border Police. The name of the city may have originated from the Sanskrit word Purna?Aranya, which means complete jungle. Purnia has a large forest cover and is located in the Mithila region of the state. The city lies on the alluvial tract of the Gangetic Plain and numerous rivers flow through the area that are mostly the tributaries of River Koshi. The city experience a favorable climate and is often referred to as "Mini Darjeeling." There are around 3 lakh residents in Purnia. Maithili, Angika, Hindi, Urdu, Bengali as well as English are the commonly spoken languages in this area. Purnia has an agricultural economy. The fertile soil supports paddy cultivation. Crops like potatoes, wheat, khesari, chickpeas, lentils, barley, sugarcane, tobacco, chili peppers, maize, makhana, mung beans and jute are also cultivated in the area. There are several poultries and fisheries in Purnia. This rapidly developing city is equipped with all modern amenities and many educational institutions.
In 1994, HDFC Bank was established, based in Mumbai, India. As of 31st March 2018, it has a presence of 88,253 permanent employees. Outside India, it is present in Bahrain, Hong Kong, and Dubai. The largest bank in India by market capitalization and ranked 69th in 2016 BrandZ Top 100 Most Valuable Global Brands. The Union Finance Minister, Mr. Manmohan Singh inaugurated the first office of HDFC Bank. Across India, the bank had 4,715 branches and 12,260 ATMs, as of June 30, 2017. In FY 2017, 4.30 lakhs POS terminals were installed and 235.7 lakhs debit cards and 85.4 Lacs credit cards were issued. Several products and services are offered by the HDFC Bank including wholesale banking, auto loans, two wheeler loans, personal loans, treasury, retail banking, loans against property. HDFC bank also introduced various digital products such as Payzapp and Chillr. In February 2000, the HDFC Bank merged with Times Bank. It was one of the first mergers of two private banks in the new-generation private sector banks category. The HDFC Board approved the acquisition of Centurion Bank in 2008 for 95.1 billion INR which was one of the most significant mergers in India in the financial sector.