Who can file a complaint before the appropriate consumer forum?

The correct answer is option 1- Any consumer can file a complaint and does not need the services of an advocate.

The consumer has a right to file a complaint and to be heard in case of dissatisfaction with a good or a service. Consumer organisations and NGOs perform several functions for the protection and promotion of interest of consumers. They can also File complaints in appropriate consumer courts on behalf of the consumers but they should be registered.

A complaint before the appropriate consumer forum can be made by:
(i) Any consumer;
(ii) Any registered consumers’ association;
(iii) The Central Government or any State Government;
(iv) One or more consumers, on behalf of numerous consumers having the same interest; and
(v) A legal heir or representative of a deceased consumer.