If there was a bubble it should've burst a long time ago. India's real estate market is fueled by unaccounted money. As long as there's that, real estate will thrive. It's also because of the sentiments of Indian people and how we look at real estate as a very safe and stable asset class.
When you account for PPP(purchasing power parity), RE prices in some Indian cities are one of the highest in the world. More than that of cities of major developed economies. What will happen is that real estate prices will not move up significantly going forward and there will be a time correction in the prices. So, 5-10 years down the line RE would've moved by 5-10% from the current prices. See the price trend from the last 5 years, you'll notice that the real estate prices in most parts have gone nowhere.