Six houses have been robbed at Haripur Tole in Lahan Municipality-17, Siraha district on Monday.
A gang of dacoits carried out bomb blasts before robbing the houses.
Some of the locals were injured in the explosion.
The dacoits robbed cash and gold ornaments from the houses of Raj Dev Yadav, Ajay Kumar Yadav, Ram Babu Thakur, Ram Awatar Thakur, Ram Prasad Yadav and Niranjan Yadav last night.
Yogendra Yadav and Niranjan Yadav, who were injured while trying to retaliate against the dacoits, have been sent to Biratnagar for treatment.
Ram Babu Yadav, Biracha Thakur, Jogendra Yadav and Mani Yadav, who were also injured in the incident, are undergoing treatment at a local hospital.
Mayor Mahesh Chaudhary said that the Lahan Municipality has decided to provide Rs 100, 000 each to the victim as relief and for the treatment of the injured.
Further investigation into the incident is underway, said police.