Hari Bahadur Budathoki killed his wife Krishna over a domestic feud at around 1 a.m.
Police have arrested him and are investigating into the case.
Suspicious death of a man who hacked his wife to death
Lamichhane claimed that the cooperative fraud case was used as a pretext to launch political retaliation against the party, which intensified after the Nepali Congress-led government came to power.