his mother kamla told us, "when i saw him i knew he was my saroo."rteen times. he reunited with his sister and one brother who both had moved to a nearby city, but his mother never left their village. the movie shows the love between saroo and his oldest brother guddu, who took him to that train platform 25 years before. kamla told saroo his brother was killed on the tracks the very night saroo was lost. on that one night, your mother lost two sons? >> saroo brierley: yes, and i can't think, you know, what she went through. it's like, one is just, you know, here it is, he's died, but the other one, he's just disappeared. >> whitaker: why did your birth mother decide to stay there in that very village? >> saroo brierley: because she felt that one day the son that she had lost would come back. and it was amazing because here i am, determined to find my hometown and my family from one side of the world, oceans apart, and here's my birth mother sitting there and waiting because she knew that one day her son would come back. and i'm so glad that she did.