As per the provisions of the Trademark Law, what do collective trademarks indicate ?

Under section 2(1)(g) of the Trade Marks Act, 1999, a collective mark is a trade mark distinguishing the goods or services of members of an association of persons (which is the proprietor of the mark) from those of others, and expressly excludes a partnership within the meaning of the Indian Partnership Act, 1932. It therefore indicates a connection with a proprietor association rather than an individual proprietor or partnership firm, and is not a collection of all registered marks.