"Unity in diversity" is based on the concept where the individual or social differences in physical attributes, skin colour, castes, creed, cultural and religious practices, etc. are not looked upon as a conflict. Rather, these differences are looked upon as varieties that enrich the society and the nation as a whole. In India, there are a large number of ancient culture prevailing or still practicing today. Though there are several numbers of diverse cultures in India, still it has unity in diversity. The modern Indian civilization has been nourished and developed by multiracial contributions. From times immemorial, diverse races migrated into India by via land and sea routes and get themselves settled here. In course of time they are absolutely absorbed in India's social life. The ancient ethno-linguistic groups, such as, the Aryans, the Austrics, the Negritos the Dravidians, the Alpines and the Mongoloids, had combined to constitute the modern Indian race. In the historical period, diverse branches of the aforementioned unique ethnic groups – the Persians, the Pallavas, the Kushanas, the Greeks, the Sakas, the Huns, the Portuguese, the Arabs, the Turks, the English and the European races came to India, and enriched Indian ethnicity and culture by their contribution to the same. In respect of religion in India, there is no end of its range. India is the place of reunion of many religions and languages of the world. People from around the world with different cultures are found living in a peaceful manner. Here, the Hindus, the Sikh, the Christians, the Muslims, the Jews, the Buddhists, the Jains and the Parsees(Parsi community) live abreast of each other. They all celebrate religious festivals with great enthusiasm. Besides this, the aborigines living in the jungles or in the hill areas have various ancient religious customs which they carefully observe.