TIll 1964, India celebrated Children’s Day on November 20th as observed by the United Nations. After the death of Jawaharlal Nehru in 1964, India decided to adopt November 14th, Nehru’s birthday, as Bal Diwas or Children’s day.
He established the Children’s Film Society with the aim of developing an indigenous film culture that produced films which entertained and educated children about the world they lived in. In 1928, Nehru wrote a series of letters to his daughter on mainly historical topics which published a year later as 'Letters from a Father to his Daughter'.
Read more about Jawaharlal Nehru’s biographical details and his role in the making of India’ Constitution here.