What really happened at the Kochadaiyaan shooting?

There is a buzz doing rounds that television artiste Jeeva, who is known for imitating Rajinikanth perfectly, was the original choice to play Rajini���s dupe in Kochadaiyaan. The young actor was to do some difficult scenes that Rajini is not capable of doing now due to his health issues.
It is also said that Jeeva was to fly down to London for the shooting.So what was the reason that Jeeva did not find a place on the flight to London along with the other cast and crew of Kochadaiyaan? Well, sources in the know say that Jeeva was denied Visa at the last moment.
It is because of this Rajini had returned back to Chennai very soon as the shooting cannot proceed without Jeeva. Wonder how true this gossip is!