The basis for Indian civilization can be traced back to the Indus Valley Civilization, which existed around 3300-1300 BCE in what is now present-day Pakistan and northwest India. This ancient civilization was known for its advanced urban planning, sophisticated architecture, and intricate system of writing. The Indus Valley Civilization laid the foundation for many aspects of Indian culture, including religion, art, and social organization. Additionally, the Vedic period, which followed the decline of the Indus Valley Civilization, introduced important religious and philosophical ideas that continue to influence Indian society today.