India, Oct. 3 -- It has been almost 20 years since Sienna Miller first visited India, but the memories of the days she spent here are fresh in the actor's mind. The actor, currently starring in the legal drama War, talks to Hindustan Times about her 2007 visit to Mumbai and what it helped her learn about the country.

Sienna Miller's visit to India was most unusual for a Hollywood star. She wasn't in the country to promote a film or a show, but as an ambassador for Global Cool, a climate change advocacy group. Her week-long visit focused on raising awareness about climate change and lobbying for legislative change in India, with an emphasis on environmental issues. For this, the actor visited various places, including Mumbai's Dharavi, As...