Indian history dates back to 3000 BC. Excavations in Punjab and Gujarat reveal that the Indus Valley civilization was a highly developed urban civilization. In fact the two cities of Harps and Mohenjodaro, situated on two sides of the river Ravi, are known to have been built on a similar plan. But that only meant a new wave of urbanizations was taking place along the Ganges around 1500 BC. This has been recorded in the Rig Veda - the earliest known literary source composed in this period that sheds light on India's past. Exoticholidaysearchindia.com experienced travel consultants can advise you on the best destination and accommodation to suit your needs and create your perfect holiday.