You uh, do realize India has a long history, don't you? Indus Valley Civilization beginning in circa 3300 BCE?
You know, the Chola Empire (1), Pala Empire (2), Badami Chalukya Empire (3), the Rashtrakutas of Deccan, the Gurjara Pratiharas of Malwa, and the Palas of Bengal?
Since you've asked for proof, I've given a few books you could read for proof.
(1) Das, Sisir Kumar (1995) [1995]. History of Indian Literature (19111956) : Struggle for Freedom - Triumph and Tragedy. New Delhi: Sahitya Akademi. ISBN 81-7201-798-7.
Harle, J.C (1994). The art and architecture of the Indian Subcontinent. New Haven, Conn: Yale University Press. ISBN 0-300-06217-6.
Hermann, Kulke; Rothermund D (2001) [2000]. A History of India. Routledge. ISBN 0-415-32920-5.
Keay, John. India: A History. New Delhi: Harper Collins Publishers. ISBN 0-002-55717-7.
(2) Chattopadhyaya, Alaka (1967). Atisa and Tibet. Calcutta: Motilal Banarsidas Publishers Pvt. Ltd.. ISBN 81-208-0928-9.
(3) Chopra, P.N.; Ravindran, T.K.; Subrahmanian, N (2003) [2003]. History of South India (Ancient, Medieval and Modern) Part 1. New Delhi: Chand Publications. ISBN 81-219-0153-7.
Cousens, Henry (1996) [1926]. The Chalukyan Architecture of Kanarese Districts. New Delhi: Archaeological Survey of India. OCLC 37526233.
Foekema, Gerard (2003) [2003]. Architecture decorated with architecture: Later medieval temples of Karnataka, 10001300 AD. New Delhi: Munshiram Manoharlal Publishers Pvt. Ltd. ISBN 81-215-1089-9.
Hope this helps.