I dont find any different between KAAMI n BAAHUN. They looks same"JUNGA N DAARI". They both speaks Nepali coz they both doesnt have their own language like others (newar, tamang, gurung)does.only one different is KAAMI is labour Bahun(they makes something "KHUKURI,KODALO")n Baahun is speaking KAAMI(they speaks too much n "HAAT LAAGYO SUNNA". Thats all i know.