I am surprised on your point of view that Dr. Singh single handedly changed the economic stature of the country.
It was his party and his party's president which led to the fall of three governments and which forced India to go again and again go into elecltions and then India fell into debt trap. India kept its gold not because of Chandersekhar but because of Congress greed of ruling India and not let others rule.
Today, Congress is tasting the fruit once shown by the very party. IS CONGRESS NOT LOOKING AT DEVE GOWDA TO SAVE THEM IN PARLIMANET WHEN THEN PRESIDENT OF CONGRESS BROUGHT DOWN HIS GOVERNMENT FOR NO REASONS.
READ CONGRESS HISTORY, IT HAS KILLED SUBHASH CHANDRA, DR. SHYAMA PRASAD MUKHERJEE(HE WAS PUT UNDER HOUSE ARREST IN SRINAGAR WITH THE HELP OF SHEIKH ABDULLAH AND WAS KILLED), LAL BAHADUR SHASTRI (KGB KILLING), RAJESH PILOT, SCINIDA ETC.