Chief of India's ruling Congress party Sonia Gandhi (C) arrives to cast her vote as Prime Minister Manmohan Singh (wearing blue turban) and India's former Finance Minister and presidential candidate Pranab Mukherjee (L) watch during an election for the ceremonial post of president in New Delhi July 19, 2012. Indian lawmakers voted for a new president on Thursday, ending weeks of wrangling and opening a much-hyped political window billed as the best chance for Prime Minister Manmohan Singh to launch a wave of reforms and reverse an economic slowdown.