Lucknow/ Moradabad/ Kolkatta/ Vadodra, Sept 13 (ANI): Polling for three Lok Sabha and 33 Assembly seats is currently underway across 10 states with the results crucial for both the ruling BJP-led NDA government as well as the opposition parties who are yet to recover from the massive defeat in the 2014 Lok Sabha elections. Voters began to queue up on Saturday at polling stations for the by-poll in Uttar Pradesh's one Lok Sabha and 11 assembly constituencies. Samajwadi Party and the Bharatiya Janata Party (BJP) are the main contenders in most of the assembly seats and the lone Lok Sabha seat.Voting is also underway for the Chowringhee and Basirhat (South) assembly constituencies in West Bengal.Voting for the Antagarh assembly constituency in Chhattisgarh also began today.Polling for Gujarat's one Lok Sabha and nine assembly by-polls is underway too.The Vadodara Lok Sabha seat was vacated by Prime Minister Narendra Modi after he was elected to the parliament from two places, including Varanasi in Uttar Pradesh.Voters queue up in Telangana too for polling.