An Indian boy who lost his mother in 1986 has found her 25 years later from his new home in Tasmania - using satellite images.

Saroo was only five years old when he got lost. He was travelling with his older brother, working as a sweeper on India's trains. "It was late at night. We got off the train, and I was so tired that I just took a seat at a train station, and I ended up falling asleep."