Siddha system of medicine is the most primitive medical system. This system has a vast range of external therapies for health management. Varmam one of the branches of siddha system helps human society in curing the disease. Varmam means vital life force in the body. In Yugi vaithiya chintamani, Yugi munivar classified the vatham disease as 80 types and “Pakka vatham” is one among them. In Yugi as per the text, the signs and symptoms of pakkavaatham may be correlated with Hemiplegia in modern science. Several converging lines of contemporary evidence suggest that weakness presents a more serious compromise to movement function in post stroke Hemiplegia than spasticity. This review examines the clinical and functional phenomena of weakness in post stroke Hemiplegia, currently available evidence identifying physiologic substrates contributing to weakness, and reports of early investigations involving high-resistance training targeted at improving strength and the transfer of strength to improvements in functional capacity.