Polling is being held in Palamau (SC), Chatra, Koderma and Lohardaga (ST) and will end at 4 pm.
A total 62 candidates are in the fray today. Prominent among them are BJP candidate former Jharkhand police chief Vishnu Dayal Ram, RJD's Manoj Kumar and Jharkhand Vikas Morcha's Ghuran Ram.
Trinamool Congress is making its debut with former Maoist Baitha contesting as its nominee from the Palamau seat where the Congress has won six times.
Other candidates are former union minister and Congress candidate Rameshwar Oraon, sitting BJP MP Sudarshan Bhagat, BJP's state unit chief Ravindra Kumar Ray and former Congress MP Tilakdhari Singh.
Polling for the remaining 10 Lok Sabha seats will be held on April 17 and 24.
