Rang De Basanti was released in 2006 with Aamir Khan, Soha Ali Khan, Kunal Kapoor, Madhavan, Sharman Joshi in main roles was filmed in Delhi and is about corruption in the country. It has been well directed by Rakeysh Omparkash Mehra.
A British filmmaker comes to India to make a documentary on Indian freedom fighters for which 5 youth are selected. One of them meets with an accident and gets killed and when gone into details, it relates to the corruption as a root cause.
Overall an interesting and a must watch movie!