Devi Bagala would be the deity of Bagalamukhi Mantra. She is also referred to as 'Valgamukhi'. 'Bagala' or 'Vagla' actually suggests a 'rope' or maybe a 'bridle' – that may be set during the mouth to control the movements of tongue - and 'mukhi' means 'faced'. She may be the https://www.youtube.com/watch?v=CQDKEh9UjJA