As I had earlier mentioned, I dislike linking blog posts because usually, they are one-sided and biased, and full of personal prejudice. I was reading this person's review of the concert but then was upset with what he refers to as, Rahman's discrimination. A lot of blogs are giving wrong propaganda.
This fan group has all the songs done in his concerts so far listed. If you read it, and learned to count till 30, you will know that Rahman had played much more (2/3rds) songs in Hindi so that the songs would reach everyone. At least, all from South India would have exposure to the Hindi songs to some extent. But even playing a few Tamil songs and a Telugu song seem to have created a south/north discrimination. If anything, Rahman has gone on record to say that he HATES this discrimination and only thinks of himself as representing India. I am truly saddened that people will go about giving him a negative image without thinking. http://anoopkris.blogspot.com/2007/06/my-first-concert.html