When he returns, he meets with his daughter, Neelum and thinks that she is Zareen, at that time all her relatives make fun of her and compare her with her mother whom they think she was "worst".
He meets with his daughter. She is Zareen. This is what he thinks. He returns. Neelum is his daughter. All her relatives make fun of her. All her relatives compare her with her mother. She was "worst" at. This is what they think. She was zareen this mother. This is what they think.