The votes will be cast at 7,058 booths, of which 2,134 are categorised as sensitive booths.
Maoist guerrillas have put up posters in remote villages of Lohardagga, Palamau, Gumla and other districts and have given the call for the poll boycott.
Around 40,000 security personnel comprising both of the state police and para-military forces have been deployed.
In the first phase, the key candidates is former state police director-general V.D. Ram, who is fighting on a BJP ticket from Palamau.
He is locked in a triangular fight with sitting MP, former Maoist leader and TMC candidate Kameshwar Baitha, and Manoj Bhuiya of the Rashtriya Janata Dal.
