Tanishaa Mukerji calls sister Kajol 'best mother in the world', says 'won’t give credit to Ajay Devgn for Yug's upbringing'

Tanishaa Mukerji couldn't help but heap praises on Kajol, calling her the 'best mother in the world'. But Tanishaa Mukerji also said that she would not like to give credit to Ajay Devgn for his son Yug’s upbringing.