You get ideas from daydreaming. You get ideas from being bored. You get ideas all the time. The only difference between writers and other people is we notice when we're doing it.
“Cinema in India is like brushing your teeth in the morning. You can't escape it.”
“I look for material that both interest me and challenges me. If I am drawn to the material and I have to work hard at it, the characters and the plots reflect the hours and hours of research.”