Devi Bagala is definitely the deity of Bagalamukhi Mantra. She is also referred to as 'Valgamukhi'. 'Bagala' or 'Vagla' practically implies a 'rope' or a 'bridle' – that may be set while in the mouth to regulate the movements of tongue - and 'mukhi' usually means 'confronted'. She may be https://www.youtube.com/watch?v=CQDKEh9UjJA