The Congress Party leadership evidently doesn't read a lot. Otherwise, Shashi Tharoor definitely wouldn't be in Congress Party. The tweeting ("cattle class") controversy pales in front of this.
In the brilliant satire, The Great Indian Novel, Shashi Tharoor has very cleverly casted the Indian Leaders as characters of the Mahabharata. And guess who is Jawahar Lal Nehru in the novel? The blind king Dhritarashtra and so it obviously follows that Indira Gandhi is Duryodhana - she is called Priya Duryodhani, the autocratic villain, daughter of Dhritarashtra and head of the Kaurava Party.
I am surprised that the Congress men known for their unflinching devotion to the Nehru-Gandhi family are not baying for Tharoor's blood. Or perhaps my original assumption holds good - The Congress Part Leadership does not read a lot. Ok, it is not to end a post in a negative note, so ... perhaps the inclusion of Shashi Tharoor into Congress and Ministry is a sign of a mature leadership that has a great sense of humour and recognises the experience that Tharoor brings into the External Affairs Ministry.