Yes sir this custom is followed in India too.As an ethical point of view it is belived that when your coin get attach to the wall yours dreams will fulfill.In india people also throw coins to rivers as rivers are belived as another form of god that come to earth to wash away all our sins.According to scientific point of view coins are throwed to rivers as coins are made up of metals and it purifies the water.This custom is follwed mainly in India by hindu people.
Thank you