The curfew was relaxed for 10 hours, from 6 a.m. to 4 p.m.
"The situation is limping back to normalcy. Therefore, we decided to lift the curfew for another six hours to ensure people could buy essential commodities," West Garo Hills Deputy Commissioner Pravin Bakshi told IANS.
He said further relaxation would be done after assessing the law and order situation.
Chief Minister Mukul Sangma appealed to all sections of society to maintain peace and harmony and not to believe in rumour mongers.
The district administration has stepped up security and is engaged in meetings with people.
"Peace meetings have been organised at places where there have been misunderstandings and to restore normalcy," Bakshi said.
Curfew was imposed in Phulbari, Rajabala, Bhaitbari, Singhimari and other adjoining areas Tuesday night to foil communal clashes between tribal Garos and Muslims after some people circulated text messages with a communal flavour.