I learned spoken english by purely watching english movies & tv shows, initially with subtitles & re-watching again until I hear & understand all dialogues, & l

I learned spoken english by purely watching english movies & tv shows, initially with subtitles & re-watching again until I hear & understand all dialogues, & later other movies without subs. Later, I started working with some British co-workers & socializing also, & developed a British accent. I am Indian/Punjabi by birth & hav spent most of my life in India only.