Altogether 98 candidates, including Congress stalwarts and former chief ministers Giridhar Gamang and Hemanand Biswal, former union ministers Jual Oram (BJP) and Bhakta Charan Das (Congress) are in the race from Bargarh, Sundergarh, Sambalpur, Balangir, Kalahandi, Nabarangpur, Kandhamal, Aska, Berhampur and Kalahandi parliamentary constituencies.
Hockey star and former Indian team captain Dilip Tirkey is contesting the election as a BJD candidate from Sundergarh Lok Sabha seat. He is pitted against Hemanand Biswal of Congress and BJP's Jual Oram.
There are 688 aspirants for the 70 assembly constituencies under these Lok Sabha segments.
Chief Minister Naveen Patnaik is seeking re-election from Hinjili assembly constituency in Ganjam district and many state ministers were also in the fray.
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Among the other contestants are candidates of AAP, Odisha Janmorcha (OJM), Ama Odisha Party, Samata Kranti Dal, BSP, JMM and Trinamool Congress.
An electorate of 1.35 lakh voters is eligible to exercise their franchise on April 10.
With several constituencies in these regions falling under Maoist-hit areas, where the red rebels have given a call for poll boycott, tight security arrangements were made with to prevent any untoward incident.
Congress President Sonia Gandhi, Congress vice-president Rahul Gandhi, BJP's Prime Ministerial candidate Narendra Modi, BJP President Rajnath Singh, senior BJP leader Venkaiah Naidu addressed poll rallies to muster support for their respective party nominees.
For the ruling BJD in the state, Chief Minister Naveen Patnaik was the star campaigner.
Two other chief ministers, Raman Singh (Chhattisgarh) and Hemant Soren (Jharkhand) also hit the campaign trail in the state.
Electioneering had its share of glamour and glitz with actors and sports personalities participating in roadshows to regale voters.
Congress slammed the BJD government in Odisha accusing it of misrule and corruption. It promised to order a CBI probe into mining, chit fund and other scams that rocked Odisha in recent past.
Polling in the remaining 11 Lok Sabha and 77 assembly constituencies in the state is scheduled to be held on April 17.