Voting has begun for the star-studded Phase 3 of Lok Sabha elections, which will see political heavyweights such as BJP president Amit Shah, Congress chief Rahul Gandhi, former Union minister Shashi Tharoor and former chief minister of Uttar Pradesh Mulayam Singh Yadav among others contest in 117 parliamentary constituencies across 15 states. The Prime Minister once again encouraged the first-time voters to cast their votes in the Lok Sabha elections." I congratulate first time voters and invite them to vote. This is their century. They should vote to secure this century for their future. I hope they come in numbers to cast their votes," PM Modi said after casting his vote in Ranip in Ahmedabad.