I hold an Indian passport and I have a USA B1/B2 visa that was issued to me in India last year. The visa is valid for 10 years but I recently moved from India to Australia for higher studies. I wanted to know if the visa I got in India is still valid and can I use to travel from Australia to USA or do I have to apply for a new visa in Australia to travel to the US?
Noone cares where you enter from. I used my ten year multi entry visa into the USA in my Hungarian passport uncounted times over the years while I resided in Canada. They do care about whether you are a genuine visitor but that's it.