Bru refugees are the only people, besides defence personnel and polling officials, permitted to cast their votes through postal ballots.
A 50-strong polling party would leave Aizawl tomorrow for the six relief camps in the district to conduct polls, state Joint Chief Electoral Officer Lalhmingthanga told PTI.
Hoping that the 4,682 Bru voters would complete the polling exercise during the two days, he informed that the security arrangements at the relief camps would be made by the District Magistrate.
Bru voters had earlier exercised their franchise through postal ballots in the December assembly polls.