Maktubat category, under Sufism, contains letters of many great Islamic personalities, which are a source of inspiration and enlightenment for every person. This list is continuously increasing, with the latest addition of Maktubat-e-Masoomiya, the letters of the famous Mujaddidi sufi shaikh Hadhrat Muhammad Masoom Faruqi Naqshbandi, son of Mujaddid Alef Sani.