Games were conducted successfully as per schedule and there was such incident as was reported in media and raised by many to defame India. It doesn't mean there were no official mishandling but it was all handled by the Government and private sector.
Now, India has proved itself
its time to take a look and punish the culprits who didn't even cared about there motherland India and tried to tarnish its image in front of the international community.
I don't think that any Indian ever had any doubt about the success of the games. Have a look at the final medal tally at Common Wealth Games 2010 Delhi official site's info system.
