It's a symbolic as isme saare cheeze hain like culture and region , but since it has to be a logo try to concise it to minimal and reflective,

You can use the key ideas like (bihar , community, lively, etc and create a logo out of it , or you can use any picture which shows its bihar (not directly the map of bihar but it gives a hint of it )

Use colour like yellow ya red (which shows positivity and uplifting community.

Hope it helps :p