Gridhrasi is a Vataja Nanatmaja Vyadhi described in Ayurveda, characterized by radiating pain from the lumbar region to the lower limb, associated with stiffness and restriction of movements. Vata Dosha plays a predominant role in its pathogenesis. Kati Basti, a localized Bahya Chikitsa procedure, is commonly practiced in Vata-dominant musculoskeletal disorders. Mahavishgarbha Taila is a classical formulation indicated in Vata Vyadhi due to its Ushna and Snigdha properties. This paper presents a case of Gridhrasi successfully managed with Kati Basti using Mahavishgarbha Taila. Significant improvement was observed in pain, stiffness, and functional ability, suggesting the effectiveness of this therapeutic approach.