Shashi Tharoor, no stranger to controversies, has written a scathing letter to Congress President Sonia Gandhi accusing the party leadership of not appreciating his sincerity while distancing himself from recent media reports of his disagreement with the party's strategy to stall Parliament. The date of the letter is not known, but the references suggest the letter was written immediately after reports surfaced of Tharoor's supposed reservations at the tactics adopted by Congress in Parliament.