New Delhi: Vehemently opposing Tamil super star Rajinikanth's entry into politics, Rajya Sabha MP Subramanian Swamy now tweeted a photograph of the actor “gambling” in a US casino and demanded an Enforcement Directorate (ED) probe into his wealth.

The tweet marks the senior BJP leader’s sharpest attack on Rajinikanth when the latter is making all out efforts to join politics.

Earlier, Swamy had questioned Rajinikanth’s credentials as a “Tamizhan”, saying his political debut would “spell disaster”.

"He has no future in politics. A new generation of very educated Tamilians who are assertive, influential now want national politics to come to Tamil Nadu. He is unsuitable for becoming the chief minister of Tamil Nadu," Swamy had said.

When Rajini’s fans defended the actor saying, “He is a highly paid actor. He can afford it. Don't you think Sir ?” Swamy asked why did he go to the US when he can afford medical treatment in India. And he also called Rajini’s fans illiterate who can never understand why he did his PhD from Harvard.

Over several interactions with his fans in May, Rajini had said the political system needed “cleansing” and that he would not allow "wrong people" to join him if he took the political plunge.

Though he never confirmed clearly about his political entry, the 66-year actor has been giving enough hints to join active politics by interacting with his massive fan base in the recent months, especially after the death of Jayalalithaa.