IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-12-1-45792 Original Research Paper A Case Report On Rare Beta Thalassaemia Mutations -90 (C? T) and IVS 1-130 (G? C) Found in Assam, India. Mauchumi Saikia Pathak Dr. January 2023 12 1 01 02