Bagheli is a regional language used for intra-group and inter-group communication.
From the en.wikipedia.org
Effective communication is an essential component of professional success whether it is at the interpersonal, inter-group, intra-group, organizational, or external level.
From the forbes.com
There was no widespread inter-island group communication, nor is there much indication during this period of any interest in such communications, at least not for economic reasons.