A 23-year-old woman from Dombivli in Thane district of Maharashtra was allegedly killed by her live-in partner by hitting her on the head with a cooking gas cylinder on Sunday, the police said.
Police said the accused had doubts that his girlfriend was cheating on him.
In a fit of rage, he hit the woman's head with an LPG cylinder at their residence in Golavli village before fleeing, a police official said.
The woman was rushed to hospital after police were informed by neighbours.
The accused, whose identity is withheld by the police, is on the run.
For more Thane news, click here
Get the latest election news, live updates and election schedule for Lok Sabha Elections 2019 on ndtv.com/elections. Like us on Facebook or follow us on Twitter and Instagram for updates from each of the 543 parliamentary seats for the 2019 Indian general elections.