Sir,
As per Explanation : 1 of sub-rule (2) of rule 5 of Service Tax (Determination of Value) Rules, 2006, "pure agent" means a person who-
(a) enters into a contractual agreement with the recipient of service to act as his pure agent to incur expenditure or costs in the course of providing taxable service;
(b) neither intends to hold nor holds any title to the goods or services so procured or provided as pure agent of the recipient of service;
(c) does not use such goods or services so procured; and
(d) receives only the actual amount incurred to procure such goods or services.
An 'intermediary' means a broker, an agent or any other person, by whatever name called, who arranges or facilitates a provision of a service (hereinafter called the 'main' service) or a supply of goods, between two or more persons, but does not include a person who provides the main service or supplies the goods on his account.
Therefore as opined by Shri Ganeasn Kalyaniji, a pure agent cannot make profit out of dealings he had with third party on behalf of the receiver of the service whereas an intermediary is acting on behalf of the service receiver/provider on commission basis which includes his profit element.