The instruction, which drew national attention, was passed on to the state government employees and officers.

A senior Tamil Nadu BJP leader, close to Ganesan, said, "He had come here on a personal visit. He was diagnosed with a block in the heart. He is doing good." 

Though the party has got three candidates in the race, it is not the final list as the latter would be announced only after the deadline of withdrawing the nominations, which is on October 8.

The big mystery will be solved in the evening hours of Saturday - September 30 when the process of filing the nomination ends. 

As Ashok Gehlot is out of the contest, the race is now between Shashi Tharoor and former Madhya Pradesh Chief Minister Digvijaya Singh.

The minister has been getting treated at a private hospital in Alwarpet, Chennai and his cabinet colleagues and senior leaders have wished him a swift recovery. 

The ban has been imposed under Section 3 of the Unlawful Activities (Prevention) Act, 1967. 

The centre has also banned eight outfits that were associated with PFI and the clampdown has come when the central agencies have carried out unprecedented raids against the front and its leaders.