Who is the stranger who came to the village? and what is his significance?

Their family situation changes a bit when the de Silva family comes into the village. They are a rich family who vacation at their seaside home several times a year, and they always employ the children. Lila and Hari start helping them and become their servants. After finding out about their situation, Mr. de Silva offers Hari a job in Bombay as a car washer.