Communication starts from individual and moves forward to encompass with mass people.
How network develops for communicating is never simple to describe because consciously or unconsciously we communicate through various means towards various places or location.
Internal communication is a such type of communication which occurs within the entity between and among the employees and such communication may happen formally or informally to meet the internal demand.
Therefore it is always required and suggested to provide more emphasis on such communication since it is termed as the backbone of an organization.