43rd Dai-al-Mutlaq Syedna Abdeali Saifuddin RA
Birth Date: 9th Safar 1189 H
Date of Wafaat : 12th Zilqad 1233 H, Surat
Period of Dawat : 19 years , 4 months , 24 days
Syedna Abdeali Saifuddin(RA) is known as "Moiyyed-e-Asger" because of his extensive work in the literary field and the vast number of 'Qasidas'(Islamic poetry) written by him.
He erased the wrong notions that Majdu had spread about Imaan and got the mumineen back on the right path of Imaan. He succeeded as Dai at the age of 28 years. Many 'Taameerat' (constructions) were done in his era. Amongst them is Al-Masjid-ul-Azam which was funded by his personal wealth and the famed Al-Darsus-Saifee which was later renamed as Al-Jamea-Tus-Saifiyah by Syedna Taher Saifuddin(AQ). His zamaan witnessed many scholars who wrote books on many subjects which are still astutely referred to) and which were written under his guidance.
In 1228H, Jamnagar and Kutch fell prey to severe drought. 12,000 mumineen migrated from there and came under his shelter. Syedna(RA) looked after them for one year and helped them to become self-reliant. He did nass on Syedi Abdul Qadr Hakimuddin, but he expired. He was grief-stricken. The 'munafeqin' started taunting him that the person you had so proudly appointed and were counting on has passed away. Whom will you turn to now? He angrily retorted that it was not for him to worry but Imam-uz-Zamaan would guide him spiritually and he would do as he directed.
His son, Syedna Mohammed Badruddin, was born in the year 1232 H. The nasihat "Ilm na Moti Jaro" was written for him by Syedna(RA). He took ill after that and on the 7th of Zilqad, he called the Hudud Kiraam and did nass on Syedna Mohammed Ezzuddin(44th Dai) in their presence and later passed away.
Article From : http://www.mazaraat.org/