Which of the following is a type of horizontal communication?

The correct answer is A) Lateral communication. Organisational communication is classified by direction of flow. Downward and upward communication are vertical, running between superiors and subordinates along the chain of command. Lateral, or horizontal, communication runs between people at the same level, such as two department heads coordinating a project, and it speeds up work by bypassing the hierarchy.

• B) Downward communication is vertical: instructions, policies and circulars flowing from top management to lower levels.
• C) Upward communication is also vertical: reports, feedback and grievances moving from subordinates to superiors.
• D) Neutral communication is not a recognised category in organisational communication theory. The standard direction-based classification is vertical, horizontal/lateral and diagonal, so this is a distractor.

Core concept: direction of communication flow in formal organisations. For Mains, this links to GS2 on governance and administrative efficiency, since well-structured lateral coordination reduces file-movement delays between government departments.

Trap: candidates pick downward because it is the most familiar, or they accept neutral communication as a real category because it sounds plausible. Check the direction first: horizontal means same level.