Who is the author of "Sivagamiyin Sabadham"?

Kalki (R. Krishnamurthy) wrote 'Sivagamiyin Sabadham' as a historical fiction serial set in the Pallava dynasty era. The novel centers on Sivagami, a dancer at the Pallava court, and her relationships with key historical figures. It's considered one of Kalki's masterpieces alongside 'Ponniyin Selvan' and showcases his ability to blend history with engaging storytelling.