How long do you have to oppose an Indian trademark?
Four months from publication.

Publication, not filing — and not registration.

The application is examined first, then published. The clock starts at publication. Counting from the filing date makes you early, which is harmless; counting from registration makes you late, which is not.

Not every office works this way.

India opens the window at publication of the application, as most offices do. But Switzerland, Germany, Japan and Sweden register the mark first and run opposition from publication of the registration.

Applying one office’s rule to another does not shift a deadline by a few days. It invents one that never existed — and the real one may already have closed.

It is not over, but the route changed.

Once opposition lapses you are into cancellation or invalidity — a different action, different evidence, more cost, lower odds. Worth knowing early: a holder whose own book is largely lapsed or withdrawn is more vulnerable to a non-use challenge than the register first suggests.

The same question, answered per register.