India, July 22 -- The rift within Congress, particularly its Kerala unit, continues to widen as Shashi Tharoor hit out on the party's state unit leader K Muraleedharan on Tuesday and questioned his party position.

This comes after Muraleedharan, who has been critical of Tharoor for quite some time now, on Sunday said that the latter would not be invited to any party event in the state capital unless he changes his position about the national security issue.

He said that Tharoor was not "one of us".

To this, Tharoor said that there must be some basis for making such remarks. Without naming Muraleedharan, he said, "First of all, it seems to me that the people saying this also have to have a basis for saying this. Who are they? What is th...