Mizoram's director general of police Anil Shukla held a high-level meeting on Sunday to assess the security arrangements, a statement said.
The counting of votes in Mizoram will take place on December 4, a day after it was originally scheduled, the Election Commission said on Friday.
Chief Minister Zoramthanga, deputy CM Tawnluia, ministers, and MLAs of the state cutting across party lines took part in the massive protest rally in Aizawl.