New Delhi [India], June 2 (ANI): Congress leader Sonia Gandhi on Sunday extended greetings to the people of Telangana on its Formation Day and said that her party’s government in the state will leave no stone unturned in fulfilling the guarantee the party has promised before the election. In a video message, Sonia Gandhi said that she wanted to start by paying tributes to the countless martyrs of “mother Telangana”. “In 2004, in Karimnagar, I had promised the people of Telangana that the Congress party would fulfill their dreams of a separate state. After this statement, there were disagreemen…