Inclusion Criteria:  Post stroke (hemorrhagic or ischemic) with ankle plantarflexor (gastrocnemius and soleus) spasticity MAS 1+ to MAS 3, Post stroke more than 6 months, At least 18 years old, Able to ambulate 10 meter either independently or aided (single point stick or quadripod) Compliant to outpatient therapy. Minimal cognitive (MMSE> 24) and minimal sensory impairment, Stable neurological and medical condition  Exclusion Criteria:  Introduction or changes in anti-spastic medication dose within 3 months or during study period, Receiving intervention for spasticity (eg BoNT or serial casting) within 3 months or during research period, New neurological condition/disease, Presence of contraindications to NMES, which is: Pregnancy, Malignancy, Presence of electronic implant eg cardiac pacemaker, cardioverter defibrillator, Uncontrolled seizure/epilepsy, Infected tissues/ tuberculosis or osteomyelitis, Impaired lower limb circulation/ DVT/ thrombophlebitis, Recent fracture or osteoporosis, Actively bleeding tissue or person with untreated hemorrhagic disorder, Damaged or skin diseases at the affected lower limb