Bengaluru, Oct. 18 -- Commuters on Bengaluru's Yellow Line metro will have to wait a bit longer for faster, more frequent trains. The Bangalore Metro Rail Corporation Limited (BMRCL) has confirmed that 12-minute intervals between trains during peak hours will only be possible by the end of this year.

Currently, with just four trains operational, metro services on the 19-km stretch are running every 19 minutes. When the line launched in August with only three trains, the wait time was even longer, about 25 minutes between trains.

There's some progress, though. A fifth train has recently arrived at the Hebbagodi depot and is undergoing static testing. It is expected to be introduced into service in early November, said a report by The Tim...