K. A. Nilakanta Sastri

Kallidaikurichi Aiyah Nilakanta Sastri
Born	(1892-08-12)12 August 1892 Kallidaikurichi, Tinnevely District, Madras Presidency, British India (now in Tirunelveli District, Tamil Nadu, India)
Died	15 June 1975(1975-06-15) (aged 82) Madras (now Chennai), Tamil Nadu, India
Alma mater	Madras Christian College
Occupation(s)	Historian, Academic, professor, author
Spouse	Lakshmi Narasammal
Awards	Padma Bhushan (1957)

Kallidaikurichi Aiyah Nilakanta Sastri (12 August 1892 – 15 June 1975) was an Indian historian who wrote on South Indian history. Many of his books form the standard reference works on the subject. Sastri was acclaimed for his scholarship and mastery of sources and was a recipient of the third highest Indian civilian honour, the Padma Bhushan.^[1]