The reason behind the killing is not immediately known.
Liquor policy changes are becoming hot topics even in states like Bihar and Andhra Pradesh, where state elections are years away.
The curbs on public activities and gatherings will continue until April 30 or another order is issued.
No more than five people are allowed to assemble in any places, including shops. Only 20 people are allowed to enter the places of worship at a time.
With the new Mizo National Front (MNF) government coming to power after the election to the state Assembly held on November 28 last year, the government changed its policy and moved towards the imposition of dry law again.