Year of release: 1971(Central) Pedigree: Hybrid (M4 x Ethakkakaruppan) Yield: 33-35 t ha--1 Potential yield: 40 t ha-1 Maturity: 10 months Suitable growing regions: Tamil Nadu, Kerala, Andhra Pradesh, Karnataka Key traits: Medium tall erect branching and flowering variety with grey mature stem; green emerging leaf; mature leaf broad with green petiole tubers cylindrical with tuber outer skin creamy with purplish patches light pink tuber rind and white tuber flesh Tubers have 28-30% starch, 180-200 ppm cyanogen having good cooking quality Susceptible to CMD and Cercospora leaf spot; field tolerant to spider mite and scale insect