History of cultural genesis and outset of human civilization in the Indian subcontinent and Iran are thousands of years old. People of Iran were maintaining good relations with neighboring nations and the people of remote areas as well. In fact, background of cultural relation between Iran and the subcontinent is very long. We have a lot of mythological and historical evidences supporting a close bond between these two nations. At the beginning of the twentieth century, archeologists by excavating in the valley of the river Nile and the banks of the rivers Dazla and Forat proved that a great civilization existed about four to five thousand years BC extending from the shore of the Mediterranean sea and the valley of the river Nile to the basin of the rivers in Sind and the Ganges of Indian subcontinent. And people of these wide basins were correlated. In the light of religion, politics and government Elam and Harappa regions were similar to each other. Both the regions were ruled over by the priest-kings. And they were accustomed to worshiping the gods of land and sea and the Sun and the Moon. The Aryans proceeded from "Pamir" towards Iran and India in search of inhabitable land about 4000 to 5000 years before the birth of Christ. At first they settled in Samarkand and Bukhara now under newly independent state Tajikistan but later due to various hindrances one group of them invaded towards Iran and another group through the Khaiber pass proceeded towards India in between 1500 to 1200 BC. At present about two-thirds of Iranian people are descendents of Aryans. There was indeed an affirmative change in culture and language on the basis of co-existence of these new settlers and the local people. Consequently, a new language and new culture got shape in Iran and Indian subcontinent as well.