Additional District Judge SN Tripathi also imposed a fine of Rs 8,000 on Raidas Singh after finding him guilty in the case.
According to assistant district government counsel Rameshwari, Singh had in June 2012 killed his seven-month pregnant wife Kamlesh for dowry and then claimed that the death was the result of an accident.
She said that Kamlesh's father Kalyan Singh had lodged a dowry murder case against Raidas.