Once you have registered your trademark, you will have legal ownership of the trademark. Additionally, you can have the Indian Customs Department  prevent the importation of goods that infringe on your trademark rights. However, if a domestic company infringes on your trademark, it is probably best to consult an attorney specializing in trademark law. The factual situation of your particular case will determine the best way to resolve the dispute. This is a decision that an attorney can help you make.

The registrant must file a renewal application within the year before the expiration date of a registration, or within a grace period of six months after the expiration date, with payment of an additional fee.