Most complaints have been on Twitter with the hashtag #NammaMetroHindiBeda meaning "Our Metro. We don't want Hindi".
Praveen Shetty, President of the Karnataka Rakshana Vedike had similar sentiments to share. He told NDTV, "This is the Metro of Karnataka, of Bengaluru city. There should be Kannada everywhere, it should be for Kannadigas. That's our demand. Kannada should be in first position in big letters. We don't want Hindi."
"Why should we promote Hindi? We don't want it. It isn't the national language. Even Kannada is a national language," he added.
Metro ridership reached 3 lakh a day after the final line leading to the south of the city was inaugurated and many passengers say the 3 language formula is helpful.
Another woman passenger said, "Kannada anyway is there and Hindi should also be there. It will be easier because people from many other places come to Bengaluru and everyone won't be able read Kannada. I don't think they are forcing Hindi on us."
Whereas, Metro authorities said they were just following orders to implement the three language formula in stations as directed by the Ministry of Urban Development.
The Bengaluru Metro is jointly funded by the state and the Centre - and Metro authorities are referring the language issue to the Centre.