1. Thooran started the tradition of sending Pongal Greetings, when he sent a small notebook containing his greetings, poems and translations of Tagore's Stray Birds to his close friend K.S.Periaswamy in 1930.  Thooran later published a book titled 'Patti Paravaigal' (Stray Birds) based on the poems written by him in the first ever Pongal Greeting. 
    Reference : Pongal Parisu, 1969.