TB wala invest karala nehe eka nisa no idea. CAL eken TB invest karana eka gana thread ekak thibba
https://elakiri.com/threads/treasure-bill-%E0%B7%80%E0%B6%BD-%E0%B6%86%E0%B6%BA%E0%B7%9D%E0%B6%A2%E0%B6%B1%E0%B6%BA-%E0%B6%9A%E0%B6%BB%E0%B6%B8%E0%B7%94-detailed-guide.2138341/