Chandar Gupt Maurya introduced the departments of Tax, communication, agriculture, trade and shipping. A council of village elders was responsible for delivering justice in village.
Indian Emperor Chandragupta Maurya lived from 340-298 BCE and was the first ruler of the Mauryan Empire. He ruled from 322-298 BCE; he was the father of Emperor Bindusara and grandfather of Emperor Ashoka, who was the third Mauryan ruler and under whose reign the Mauryan Empire reached its full power and became the largest empire ever in the Indian subcontinent and one of the world's largest empires at that time.
Before the time of Chandragupta, India was mostly composed of a number of small independent states, with the exception of the Magadha kingdom, a realm that controlled most of Northern India, which was ruled by the Nanda dynasty. Chandragupta began a process that would unify India for the first time in history.
THE LIBERATION OF INDIA
During 326 BCE, while fighting his way into India, Alexander the Great came across the army of King Porus, the ruler of the local state of Paurava, located in modern day Punjab. After fighting to his last breath, King Porus surrendered to Alexander, who was impressed by the courage and stature of his enemy. Alexander made Porus his ally and turned him into king of all conquered India as a Macedonian tributary. Shortly after this, Alexander’s army refused to go any further into Asia; his men mutinied and thus the Macedonian army turned back and left India.
Chandragupta was a noble member of the Kshatriya caste (the warrior-ruler caste) and the main proponent for removing all fragments of Macedonian influence form India. He was related to the Nanda family, but he was an exile. Ironically enough, Chandragupta was a fugitive in the camp of Alexander the Great during the time of his exile, and it is possible that he personally met Alexander the Great.
With the help of his wise chief advisor and future prime minister Kautilya Chanakya, Chandragupta raised a small army. The military strength lacked by Chandragupta’s force was balanced out by the cunning strategies used by Kautilya Chanakya. Chandragupta entered the capital of the Magadha kingdom, Pataliputra, where he triggered a civil war using Kautilya Chanakya’s intelligence network. In 322 BCE he finally seized the throne putting an end to the Nanda dynasty, and he established the Mauryan Dynasty which would rule India until 185 BCE. After this victory, Chandragupta fought and defeated Alexander’s generals located in Gandhara, present day Afghanistan. Following these successful campaigns, Chandragupta was seen as a brave leader who defeated part of the Greek invaders and ended the corrupt Nanda government, thus gaining wide public support.