Mani Ratnam's next project

Ace director Mani Ratnam is already working on his next project, say sources in Kollywood. The director, though busy with Raavan, is also making plans for his next film, which we hear is titled Azan.
This again is a Bollywood flick and Mani intends to rope in Ranbir Kapoor to play the lead role.
Azan is said to be a film that focuses on the life of Muslims. The sources also report that this film could go on floors in March 2010. However, we are yet to get confirmation on this