There are several ways to dispute use of your trademark by a third party. Depending on the factual situation, the Trademark Office may or may not be the proper forum. You should consider contacting an attorney, preferably one specializing in trademark law. he o she would advise you based on the registration of trade mark or pending consideration of the registration of TM
It will be difficult to predict how long it will take for an application to mature into a registration, because there are so many factors that can affect the process. Generally, an applicant will receive a filing receipt approximately 20 days after filing. You should receive a response from the Office within six to seven months from filing the application. However, the total time for an application to be processed may be anywhere from almost a 2 years to several years, depending on the basis for filing, and the legal issues which may arise in the examination of the application.
However, you may use the Indian registration symbol "®" only after the TRADEMARK REGISTRY has actually registered the trademark, and not while an application is pending