Northeast India is a surprising hotspot for rock and heavy metal. I've spent many happy weeks there with very old Asian people at rock and metal festivals and concerts and it's unlike any other scene in Asia I know of. (There's even an annual Bob Dylan festival)

Check out Plague Throat, a death metal band from Shillong, India

youtube.com/watch?v=JOFtl7Nyro

And here's an article about them

vervemagazine.in/arts-and-cult

These Northeast Indian musicians also tend to be Indian Indigenous (mostly Khasi)