Chanakya in the context of "Chandragupta Maurya"

Indian philosophy consists of philosophical traditions of the Indian subcontinent. The philosophies are often called darśana, meaning "to see" or "looking at." Ānvīkṣikī means “critical inquiry” or “investigation." Unlike darśana, ānvīkṣikī was used to refer to Indian philosophies by classical Indian philosophers, such as Chanakya in the Arthaśāstra.

A traditional Vedic classification divides āstika and nāstika schools of philosophy, depending on one of three alternate criteria: whether it believes the Vedas as a valid source of knowledge; whether the school believes in the premises of Brahman and Atman; and whether the school believes in afterlife and Devas. (though there are exceptions to the latter two: Mimamsa and Samkhya respectively).

Kautilya's Arthashastra (Sanskrit: कौतिलियम् अर्थशास्त्रम्, IAST: Kautiliyam Arthaśāstram; transl. Kautilya's compendium on worldly affairs) is an Ancient Indian Sanskrit treatise on statecraft, politics, economic policy and military strategy. The text is likely the work of several authors over centuries, starting as a compilation of Arthashastras, texts which according to Olivelle date from the 2nd c. BCE to the 1st c. CE. These treatises were compiled and amended in a new treatise, according to McClish and Olivelle in the 1st century CE by either an anonymous author or Kautilya, though earlier and later dates have also been proposed. While often regarded as created by a single author, McClish and Olivelle argue that this compilation, possibly titled Daņdanīti, served as the basis for a major expansion and redaction in the 2nd or 3rd century CE by either Kautilya or an anonymous author, when several books, dialogical comments, and the disharmonious chapter-division were added, and a stronger Brahmanical ideology was brought in. The text thus became a proper arthashastra, and was retitled to Kautilya's Arthashastra.

Two names for the text's compilor or redactor are used in the text, Kauṭalya (Kautilya) and Vishnugupta. Chanakya (375–283 BCE), the counsellor of Chandragupta Maurya, is implied in a later interpolation, reinforced by Gupta-era and medieval traditions, which explicitly identified Kautilya with Chanakya. This identification started during the Gupta reign (c. 240–c. 579), strengthening the Gupta's ideological presentation as heirs of the Mauryas. However, the identification has been questioned by scholarship, and rejected by the main studies on the topic since 1965, because of stylistic differences within the text which point to multiple authorship, as well as historical elements which are anachronistic for the Mauryan period, but fit in the first centuries of the Common Era. The Arthashastra was influential until the 12th century, when it disappeared. It was rediscovered in 1905 by R. Shamasastry, who published it in 1909. The first English translation, also by Shamasastry, was published in 1915.

Patna (Hindi: Paṭanā, pronounced [ˈpəʈnaː] ), historically known as Pāṭaliputra, is the capital and largest city of the Indian state of Bihar. 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 also 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 Son, 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 Magadha Empire throughout the 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. The British revived it again in the 17th century as a centre of international trade. Following the partition of Bengal presidency in 1912, Patna became the capital of Bihar and Orissa Province.

The Maurya Empire (c. 322–185 BCE) was an ancient Indian empire. The empire was founded by Chandragupta Maurya in 322 BCE and lasted until 185 BCE. The Mauryan Empire was the first pan-Indian empire. At its height, the empire covered most of the Indian subcontinent. The Mauryan Emperor was the monarchical head of state and wielded absolute rule over the empire.

Chandragupta's chief minister Chanakya, sometimes called Kautilya, advised Chandragupta Maurya and contributed to the empire's legacy. Bindusara, Chandragupta's son, assumed the throne around 297 BCE. He kept the empire running smoothly while maintaining its lands. Bindusara's son, Ashoka, was the third leader of the Mauryan Empire. Ashoka left his mark on history by erecting large stone pillars inscribed with edicts that he issued. After Ashoka's death, his family continued to reign, but the empire began to break apart. The last of the Mauryas, Brihadratha, was assassinated by his Senapati, Pushyamitra Shunga who went on to found the Shunga Empire in 185 BCE.

Principles of war are rules and guidelines that represent truths in the practice of war and military operations.

The earliest known principles of war were documented by Sun Tzu, c. 500 BCE, as well as Chanakya in his Arthashastra c. 350 BCE. Machiavelli published his "General Rules" in 1521 which were themselves modeled on Vegetius' Regulae bellorum generales (Epit. 3.26.1–33). Henri, Duke of Rohan established his "Guides" for war in 1644. Marquis de Silva presented his "Principles" for war in 1778. Henry Lloyd proffered his version of "Rules" for war in 1781 as well as his "Axioms" for war in 1781. Then in 1805, Antoine-Henri Jomini published his "Maxims" for war version 1, "Didactic Resume" and "Maxims" for war version 2. Carl von Clausewitz wrote his version in 1812 building on the work of earlier writers.