commonwealth games have never been held in Delhi

.... lol... you must be referring to the Asian games of 1982 (remember Appu

? )
And I am not saying that the games will have only a negative effect.... of course, it will have benefits like better roads, infrastructure, etc....etc...
But how much of the infrastructure will be used after the games?? I have seen 2 very good stadiums in Bangalore built for 1997 National games go to waste. One of them was used to keep Rajkumar's body and all the thousands of people coming totally ruined the synthetic surface.
And there was an international meet just a few days later.....
I wonder if the same thing will happen to Delhi's new stadia and everything....