Shia Muslims participate in a religious procession on the 8th day of Muharram. Muharram is the first month of Islam. It is one of the holiest months on the Islamic calendar. Shia Muslims commemorate Muharram as a month of mourning in remembrance of the martyrdom of the Islamic Prophet Muhammad's grandson Imam Hussain, who was killed on Ashura (10th day of Muharram) in Kolkata on August 07,2022