Astaghfar ki duain are Islamic supplications or prayers that are recited to seek forgiveness from Allah. These prayers are said to be the most effective way to seek repentance for sins and to gain Allah's mercy. Astaghfar ki duain are usually recited after the five daily prayers and during special occasions such as Ramadan and Hajj. They are typically said in the form of a dua, or invocation, and consist of specific verses from the Quran. Astaghfar ki duain are said to bring peace and serenity to those who recite them and are believed to be extremely powerful in gaining Allah's forgiveness.