Thamizhini T (Apr 12, 2013) from Mettur, Tamilnadu, being 4 years 6 months have created a  record by getting 3rd Dan Black belt in karate at Mettur on Oct 15, 2017. She followed shotokan karate syllabus and did jogging, exercise, kumites, combinations, 3 step combination and kata.

http://indianachieverbookofrecords.com/thamizhini/