The deceased husban was identified as V Somaraju (33) while the accused is V Ammoji, who is still at large.
G K Veedhi police sub-inspector T N Murthy said that Somaraju was an idler addicted to alcohol, while his wife Ammoji is a daily wage worker whose earnings he used to pursue his vices.
Somaraju's harassment of his wife had increased from June 23 and he used to beat up Ammoji as well as his children, besides not allowing them eat.
Unable to bear it, Ammoji stabbed him to death with a knife today, after a heated argument with him and fled the spot.
The police has registered a case and an investigation is on.