Following are the grounds under which an opposition may be filed:
The mark which is devoid of any distinctive characteristic or includes indications which may serve in trade to designate quality, quantity, intended purpose, values, geographical origin or the time of production.
The mark is likely to deceive the public or cause confusion. This includes any mark which may be identified with an already registered trademark or that have become customary in the practice of trade.
The mark contain matters which are likely to hurt the religious sentiments of any class or section of people.
The mark is prohibited under the Emblem and Names Act, 1950.