There have been plenty of misguided lawsuits against Google, when someone gets upset and realizes that competitors are buying AdWords on their name or other trademarks. But, of course, that shouldn't
be a trademark violation (unless the resulting ad is confusing). It's just well-placed marketing. Furthermore, even if it is trademark infringement, it shouldn't be Google's liability, but the party who bought and created the ad. However, the lawsuits still keep coming -- with the latest one being in India. But what makes this one special is that the complaining company seems to be buying those types of ads itself
. So while it's complaining that competitors' ads show up on searches for its own name, it had no problem buying ads on competitors' names. Why not just try competing by offering a better service, rather than worrying about how competitors advertise?