Under the Trade Marks Act, 1999, a trade mark:

Section 2(1)(zb) of the Trade Marks Act, 1999 defines a trade mark as a mark capable of being represented graphically and capable of distinguishing the goods or services of one person from those of others, and says it may include the shape of goods, their packaging and combinations of colours. Each of the three features is part of the definition, so none of them alone is the full answer.