Kamat's Potpourri is the best website on Indian History. The most extensive coverage with a huge collection of over 16,000 pictures on India, it's a personal web page managed and maintained by the Kamat family consisting of just 4 members. Over the last 6-7 years, the website has improved continously, with new features like RSS, email subscription and powerful search being added.

They have a couple of timelines, that give you a quick summary on when certain events happened in the Indian history and what age a particular dynasty ruled. This one is a detailed timeline of the Indian Freedom Struggle.