ASI Phool Chand Yadav shot dead his wife Geeta Devo (40) with his service revolver at Rajasthan Police Academy in Shastri Nagar as he was annoyed with her that she did not allow him consume liquor.
After the murder, he fled to Alwar.
"He was sitting at Khairthal Railway Station in the morning. Some locals found his behaviour suspicious and asked to move from there but he committed suicide by jumping before a train near the station," a GRP official in Alwar said.
The couple is survived by two sons and a daughter.