Sushruta has mentioned different methods of management of diseases, such as Bheshaja karma, Kshara Karma, Agni karma, Shastrakarma and Raktamokshana. The approach of Agni karma has been mentioned in the context of diseases like Arsha, Arbuda, Bhagandar, Sira, Snayu, Asthi, Sandhigata Vata Vikaras and Gridhrasi. Gridhrasi is seen as a panic condition in the society as it is one of the burning problems, especially in the life of daily laborers. It is characterized by distinct pain starting from Sphik Pradesha (gluteal region) and goes down toward the Parshni Pratyanguli (foot region) of the affected side of leg. On the basis of symptomatology, Gridhrasi may be simulated with the disease sciatica in modern parlance. In modern medicine, the disease sciatica is managed only with potent analgesics or some sort of surgical interventions which have their own limitations and adverse effects, whereas in Ayurveda, various treatment modalities like Siravedha, Agni karma, Basti Chikitsa and palliative medicines are used successfully. Among these, Agni karma procedure seems to be more effective by providing timely relief. Shalakas for Agni karma, made up of different Dhatus like gold, silver, copper, iron, etc. for different stages of the disease conditions, have been proposed. In the present work, a comparative study of Agni karma by using iron, copper and previously studied Panchadhatu Shalaka in Gridhrashi has been conducted. A total of 22 patients were treated in three groups. Result of the entire study showed that Agni karma by Panchadhatu Shalaka provided better result in combating the symptoms, especially Ruka and Tandra, while Lauhadhatu Shalaka gave better results in combating symptoms of Spanadana and Gaurava. In the meantime, Tamradhatu Shalaka provided better effect in controlling symptoms like Toda, Stambha and Aruchi. Fifty percent patients in Panchadhatu Shalaka (Group A) were completely relieved. In Lauhadhatu Shalaka (Group B), the success rate was 00.00%, and in Tamradhatu Shalaka (Group C), the percentage of success rate was 14.28%. After analyzing the data, Tamradhatu Shalaka was found to be more effective than Lauha and Panchadhatu Shalakas.