The mode of communication that involves a single source transmitting information to a large number of receivers simultaneously, is called

The correct answer is B) Mass Communication. Here one source, such as a newspaper house, broadcaster or government information wing, sends the same message to a large, dispersed and heterogeneous audience at the same time. The flow is largely one-way, so feedback is delayed and limited.

Why the others fail:

• A) Group communication happens within a small, face-to-face set of people who interact with one another. It is not one source broadcasting to a mass audience.
• C) Intrapersonal communication is communication with oneself, such as thinking or self-talk. No external receiver is involved.
• D) Interpersonal communication is typically between two people, with immediate two-way feedback. It is the opposite of one-to-many transmission.

The core concept is the one-to-many, one-way model of mass media. For Mains GS2, this links to the role of media in shaping public opinion, the debate on media freedom under Article 19(1)(a), and the use of AIR, Doordarshan and PIB for policy outreach. Digital platforms have blurred the line, but the classical definition still holds for exam purposes.

Trap: aspirants pick group communication because it also involves many people. The test is whether there is a single source transmitting to a mass audience with little interaction.