A spastic ankle reduces walking velocity and mobility resulting in impaired gait and difficulty in ambulation. Increased plantar flexor spasticity has a devasting effect on the dorsiflexion range and also contributes to increased energy consumption during gait. H amplitude as the objective measurement is more accurate in assessing spasticity by using the H reflex. Objective: To determine the effect of various types of tDCS on plantar flexor spasticity by using H reflex and also to know which type of tDCS is more efficient in the reduction of plantar flexor spasticity Methods: A total of 30 participants were included in the study with plantar flexor spasticity. patients were randomized into 4 groups using the chit method. All Patients were evaluated for spasticity grade by using the modified Ashworth scale (MAS). H reflex was assessed for all patients followed by application of Cathodal tDCS for group 1 (n=8), Anodal tDCS for group 2 (n=7), Bi-hemispheric tDCS for group 3 (n=7) and sham tDCS for group 4 (n=8) for about 20 minutes. Post tDCS intervention all patients were reassessed for plantar flexor spasticity by H reflex and MAS scale Results: All the groups have shown significant reduction of spasticity post cathodal tDCS. The mean improvement of cathodal tDCS was found to be -0.9275 anodal tDCS was found to be -0.5229, bi-hemispheric tDCS was found to be -0.3357 and sham tDCS was found to be -0.4988. Conclusion: cathodal tDCS application has shown a reduction of spasticity after tDCS application in plantar flexor spasticity patients. This study concludes that cathodal tDCS over the ipsilesional hemisphere is a treatment modality.