rab se aap ki khushi mangtay hain,
duaao mein aap ki hansi mangtay hain,
sochtay hain kia mange aap se,
chalo aap ki umar bhar ki dosti mangtay hain...!
We cannot tell the precise moment when friendship is formed. As in filling a vessel drop by drop there is at last a drop which makes it run over, so in a series of kindness there is at last one which makes the heart run over.