https://www.epo.org/en/node/can-i-submit

Can I submit third-party observations on an Indian patent application?

Yes. Any person can oppose the grant of a patent by submitting observations to the Controller of the Indian Patent Office at any time after the publication of the patent application and before the announcement of the decision to grant. The statement and evidence presented in this "pre-grant opposition" will only be considered if and when a request for examination of the application has been filed.

If you require a more detailed answer, please send us your question using the contact form.