1 Kasu - Raghunatha Nayak Thanjavur Nayaks - 1600-1634 AD

Raghunatha Nayak ruled Thanjavur from 1600 to 1634 and is remembered as much for his patronage of Telugu literature — he was himself a poet and playwright — as for his administration. The copper kasu was the workhorse denomination of the Nayak economy, circulating through the agrarian markets and temple town bazaars that defined commercial life in the Kaveri delta. Raghunatha's reign was comparatively stable, bracketed by the more turbulent successions that plagued other Nayak dynasties in the Deccan following Vijayanagara's collapse after Talikota in 1565.