There is an old civilization that has been found in India, Bharath called the Indus-Valley culture also known as the Harappa and Mohenjo-Daro, the two main cities of that culture. The excavators of this civilization put their dates around that 2600-1800 BC range. It has been found that the civilization extended from the coast of modern day Iran through Gujarat in India and east, past Delhi and the Ganga River plains, making it the largest civilization of the world of that time, covering the whole Egypt-Mesopotamian culture base, all put together. Modern authorities argue that this was a pre-Vedic, non-Aryan culture, although its language has yet to be uncovered.
Many scholars of India as well as some from the West, have contested the viewpoint of the modern historians. They argue that, there was the existence of fire altars, water tanks, remnants of possible ritual sacrifices, other aspects of Vedic symbols like the Swastika, were found at varied sites from Iran to India, showing a definite Aryan influence around the belt.
The Indus culture, it is established, to have been primarily found to exist along the now dried banks of the Saraswati River, between the Yamuna and Sutlej, which was then the life-line river of the RigVedic culture. However it appears that the Saraswati River went dry before the end of the Indus culture. This should also indicate that the Indus culture, was in fact a Vedic or pure Aryan culture. The river Saraswati finds copious mentions in almost all Vedic works. Why would the Vedic people eulogize a dried river as the source of their culture, if they had not once lived on its banks when it was flowing?
At the onset of the 1980s, an important archeological site was found in Bharath, Dwaraka, the legendary city of the Supreme Lord, Sri Krishna. According to the legend in the Mahabharata, Sri Dwaraka Puri (City of Dwaraka) was submerged by the sea, right after the Lord left for His heavenly abode. Many people considered this claim to be myth. Now it has been discovered that the whole coast of western Bharath sank by nearly forty feet around 1500 B.C and a number of such submerged cities have been found under the sea. At the supposed site of Lord Krishna’s city, the ruins of a great stone port have been discovered, one of the largest in the ancient world.
The Dwaraka site has revealed Script characters intermediate between the Indus Valley script and the Brahmi Alphabet used for the Aryan languages of North Bharath in ancient times. Dwaraka also shows trade objects from Mesopotamia of this era. Dwaraka has been scientifically dated at 1500 BC. This site thus reveals that not only were Aryans present in India by 1500 BC but they also had reached the ocean and had built massive stone cities and were quite engaged in maritime trade. In addition to this they possessed a written script, perhaps becoming the oldest civilization to have a written script.
It shows a culture much higher, more advanced, older than any possible dates that Western scholars could imagine to paint against it. It is also obvious that Aryans could not have reached the sea without having passed the Indus Valley Culture and as studies put it, it was during that time that it was flourishing.