Born and raised in Mumbai, he discovered the blues after moving to the United States, and quit his day job as a software engineer three years ago to focus on his burgeoning career as a harmonica player and vocalist on the South Bay blues scene. In the back of his mind, he’d always wanted to bring together the uproarious Bollywood anthems of his youth with the low-down grooves he’d come to love in the blues, but the idea seemed too outlandish to pursue. [...] veteran blues keyboardist Jim Pugh happened to ask Kumar if he had any dream projects on the drawing board. [...] riding a wave of international attention, Kumar performs Sunday, Oct.