Ancient Indian architecture came into its own with the spiritual and cosmological principles of the Vedic period and the use of local materials and stone. The temples and buildings were constructed with stone and cut bricks and hand carved wood. These components were held together not by mortar or nails but rather by gravity and interlocking components.

India's architecture has profoundly impacted its civilization by serving as a foundation for religious and cultural identity, a driver of technological and engineering innovation and a reflection of social structures and urban planning 

Ancient Indian architecture had a profound and widespread impact on other civilization, primarily through the spread the religious ideas via extensive maritime trade routes and the subsequent adoption and adaption of its structural designs, planning principles, and ornamental elements across Asia and beyond.

It is so historically important because it is a tangible record of the countries diverse history, reflecting its religious beliefs, cultural evolution, and sophisticated engineering skills. It provides a deep insight into ancient Indian civilization with examples ranging from the early urban planning of the Indus Valley to the rock-cut temples of the Mauryan period and the grand temple complexes of later dynasties. this architecture serves as a bridge between ancient and modern India, with enduring principles that influence contermporary design and its diverse styles tell stories of its complex past.