This document discusses communication and barriers to effective communication in large organizations. It uses IBM Pune as a case study. There are several potential barriers to communication in large companies, including not informing all employees, sending the wrong information to the wrong people, unclear expectations, lack of openness between employees, language barriers, lack of feedback, and difficulties with new hires. Cultural barriers can also exist. Overcoming these barriers requires keeping employees informed through multiple channels, clarifying expectations, ensuring accurate information transfer, resolving issues, reducing language and regional influences, properly orienting new employees, and providing regular feedback. Effective communication is important and requires skills like listening, complete messaging, choosing the right medium, and controlling emotions.