Santosh Mourya, who was arrested last night, confessed to have killed his wife Manjita (34), son Sujal (8) and daughter Sonal (13) by strangulating them with the wire of mobile phone charger, they said.
Deputy Superintendent of Police Vivek Patil said financial crisis drove Mourya to the horrendous act.
The family arrived here on September 7. On September 9, Mourya gave sleeping pills to his wife and the children, and later strangled them.