Election is, however, being held for 59 seats today following the sudden death of Congress candidate P Chuba Chang of Teunsang sadar seat here yesterday.
The Election Commission has adjourned the polling in the constituency for a later date.
Official sources said no untoward incident was reported from any part of the state, where two persons were killed and two others injured in poll-related violence in Tuensang and Wokha districts.
Long queues of voters are seen at the polling stations since morning.
Unprecedented security arrangement has been made for peaceful, free and fair polls with a total 255 companies of central paramilitary force deployed for providing hundred per cent cover of the polling stations as against the demand of 230 companies by the state.
A total 11,93,384 electorate - 6,03,31 male and 5,89,535 women voters will exercise their franchise today to decide the fate of 185 candidates.