Excellent article on Kamaraj. ( in English)... I request all friends to download the pdf and study carefully with specific attention to dates and years.. His active political life began at the tender age of 12! till he passed away at the age of 72..( 60 years). This article gives details about Gandhiji's wrong support to C.Rajagopalachari against Kamaraj and how he later relented.
( I just hope that the information is authentic ).
http://shodhganga.inflibnet.ac.in/bitstream/10603/21872/10/10_chapter%203.pdf