There has been growing demand for allowing bars and restaurants to remain open well past midnight as Bangalore has become the country's IT hub, employing thousands of youth not only from the state, but from across the country.
The city has also become home to hundreds of foreigners, both students and working people.
The promise is contained in a manifesto for Bangalore the party released this week, ahead of polling, and two weeks after the release of its main manifesto April 19.
The change in BJP's stand in the matter appears to have been prompted by the desire to woo young voters in Bangalore, which sends 28 representatives to the 225-member assembly.