The Day of Ashura is on the 10th day of Muharram in the Islamic calendar and marks the climax of the Remembrance of Muharram.
It is commemorated by Shiites Muslims as a day of mourning for the martyrdom of Imam "Hussein ibn Ali", the grandson of the Islamic Prophet Muhammad at the Battle of Karbala on 10 Muharram in the year 61 AH (October 2, 680 CE).
In some Shiite countries and regions such as Afghanistan, Iran, Iraq, Pakistan, Lebanon, and Bahrain, the Commemoration of Imam Hussein has become a national holiday and most ethnic and religious communities participate in it. Even in predominantly Hindu country like India, Ashura (often called Moharram) is a public holiday. India is home to more than 40 to 55 million Shiites.