Bollocks. Indian civilization dates way way before Muslim invasion and British colonialism. India is the cradle of human civilization. Decimal number system, calculus, Yoga, Hinduism, Buddhism, Aryuvedic medicine, meditation, surgery, stainless steel, cotton, sugar, indigo dye, shampoo, just to mention a few, were all discovered in India before any outside influence. Naturally, outside rule did have a small influence but Hinduism reigns supreme. That's your yardstick to measure just how much influence outside rule had. Indus Valley, Mohenjo Daro, Harappan civilizations date back over 5000 years ago. The underwater city found in the Gulf of Cambay dates back even further. 

http://archaeologyonline.net/artifacts/cambay