Punjab National Bank (abbreviated as PNB) is a central public sector undertaking under the ownership of Ministry of Finance, Government of India. It is headquartered in Delhi, India, it is under the ownership of the Ministry of Finance, government of India. The bank was founded in May 1894 and is the second largest government-owned bank in India, both in terms of its business volumes and its network. The bank has over 180 million customers, 12,248 branches, and 13,000+ ATMs.PNB has a banking subsidiary in the UK (PNB International Bank, with seven branches in the UK), as well as branches in Hong Kong, Kowloon, Dubai, and Kabul. It has representative offices in Almaty (Kazakhstan), Dubai (United Arab Emirates), Shanghai (China), Oslo (Norway), and Sydney (Australia). In Bhutan, it owns 51% of Druk PNB Bank, which has five branches. In Nepal, PNB owns 20% of Everest Bank, which has 50 branches. PNB also owns 41.64% of JSC (SB) PNB Bank in Kazakhstan, which has four branches.

West Bengal (, Bengali: Poshchim Bongo, pronounced [ˈpoʃtʃim ˈbɔŋɡo] (listen), abbr. WB) is a state in the eastern region of India along the Bay of Bengal. With over 91 million inhabitants, it is the fourth-most populous state and the thirteenth-largest state by area in India. Covering an area of 88,752 km2 (34,267 sq mi), it is also the eighth-most populous country subdivision of the world. Part of the Bengal region of the Indian subcontinent, it borders Bangladesh in the east, and Nepal and Bhutan in the north. It also borders the Indian states of Odisha, Jharkhand, Bihar, Sikkim and Assam. The state capital is Kolkata, the third-largest metropolis, and seventh largest city by population in India. West Bengal includes the Darjeeling Himalayan hill region, the Ganges delta, the Rarh region, the coastal Sundarbans and the Bay of Bengal. The state's main ethnic group are the Bengalis, with the Bengali Hindus forming the demographic majority. The area's early history featured a succession of Indian empires, internal squabbling, and a tussle between Hinduism and Buddhism for dominance. Ancient Bengal was the site of several major Janapadas, while the earliest cities date back to the Vedic period. The region was part of several ancient pan−Indian empires, including the Vangas, Mauryans, and the Guptas. The citadel of Gauḍa served as the capital of the Gauḍa Kingdom, the Pala Empire, and the Sena Empire. Islam was introduced through trade with the Abbasid Caliphate, but following the Ghurid conquests led by Bakhtiyar Khalji and the establishment of the Delhi Sultanate, the Muslim faith spread across the entire Bengal region. During the Bengal Sultanate, the territory was a major trading nation in the world, and was often referred by the Europeans as the "richest country to trade with". It was absorbed into the Mughal Empire in 1576. Simultaneously, some parts of the region were ruled by several Hindu states, and Baro-Bhuyan landlords, and part of it was briefly overrun by the Suri Empire. Following the death of Emperor Aurangzeb in the early 1700s, the proto-industrialised Mughal Bengal became a semi-independent state under the Nawabs of Bengal, and showed signs of the first Industrial revolution. The region was later conquered by the British East India Company at the Battle of Plassey in 1757 and became part of the Bengal Presidency.The region was a hotbed of the Indian independence movement and has remained one of India's great artistic and intellectual centres. Following widespread religious violence, the Bengal Legislative Council and the Bengal Legislative Assembly voted on the Partition of Bengal in 1947 along religious lines into two independent dominions: West Bengal, a Hindu-majority Indian state, and East Bengal, a Muslim-majority province of Pakistan which later became the independent Bangladesh. Post Indian independence, West Bengal's economy is based on agricultural production and small and medium-sized enterprises. For many decades the state underwent political violence and economic stagnation. In 2020–21, the economy of West Bengal is the sixth-largest state economy in India with a gross state domestic product (GSDP) of ₹13.54 lakh crore (US$170 billion), and has the country's 20th-highest GSDP per capita of ₹121,267 (US$1,500).West Bengal also has the 28th-highest ranking among Indian states in human development index, with the index value being less than that of India. The state government debt of ₹4.8 lakh crore (US$60 billion), or 35.54% of GSDP, is fifth highest India, but has dropped from 40.65% since 2010–11. There is moderate unemployment. West Bengal has two World Heritage sites and ranks as the seventh-most visited tourist destination in India.

Patna (Hindi: [ˈpəʈnaː] (listen)), historically known as Pataliputra, is the capital and largest city of the state of Bihar in India. According to the United Nations, as of 2018, Patna had a population of 2.35 million, making it the 19th largest city in India. Covering 250 square kilometres (97 sq mi) and over 2.5 million people, its urban agglomeration is the 18th largest in India. Patna serves as the seat of Patna High Court. The Buddhist, Hindu and Jain pilgrimage centres of Vaishali, Rajgir, Nalanda, Bodh Gaya and Pawapuri are nearby and Patna City is a sacred city for Sikhs as the tenth Sikh Guru, Guru Gobind Singh was born here. The modern city of Patna is mainly on the southern bank of the river Ganges. The city also straddles the rivers Sone, Gandak and Punpun. The city is approximately 35 kilometres (22 mi) in length and 16 to 18 kilometres (9.9 to 11.2 mi) wide. One of the oldest continuously inhabited places in the world, Patna was founded in 490 BCE by the king of Magadha. Ancient Patna, known as Pataliputra, was the capital of the Magadh Empire through Haryanka, Nanda, Mauryan, Shunga, Gupta and Pala dynasties. Pataliputra was a seat of learning and fine arts. It was home to many astronomers and scholars including Aryabhata, Vātsyāyana and Chanakya. During the Maurya period (around 300 BCE) its population was about 400,000. Patna served as the seat of power, and political and cultural centre of the Indian subcontinent during the Maurya and Gupta empires. With the fall of the Gupta Empire, Patna lost its glory. It was revived again in the 17th century by the British as a centre of international trade. Following the partition of Bengal presidency in 1912, Patna became the capital of Bihar and Orissa Province.Until the 19th century it was a major trading and commercial hub in India. After independence there were a few downturns but its economy was still stable. After the separation of Jharkhand from Bihar, it lost its glory. Now trials are made to develop the city. As per the Directorate of Economics and Statistics (Government of Bihar), Nominal GDP of Patna District was estimated at INR 63,176.55 crores in 2011-12. As of 2011-12, Patna already recorded per capita gross domestic product of ₹1,08,657, way ahead of many other Indian cities and state capitals. Using figures for assumed average annual growth, Patna is the 21st fastest growing city in the world and 5th fastest growing city in India according to a study by the City Mayors Foundation. Patna registered an average annual growth of 3.72% during 2006–2010. As of 2011-12, GDP per capita of Patna is ₹1,08,657 and its GDP growth rate is 7.29 per cent. In June 2009, the World Bank ranked Patna second in India (after Delhi) for ease of starting a business.