Laylat Al Qadr, also known as Shab-e-Qadr, the Night of Destiny or the Night of Power is a public holiday in Bangladesh and regional holiday in India, observed on the 27th Day of Ramadan, the ninth month in the Islamic calendar. It is considered as the holiest night of the year for Muslims and marks the night that the first verses of the Quran were revealed to the Prophet Mohammed.
The Quran does not specify which day of Ramadan, the Night of Destiny took place on, but most Muslims consider it to have happened on an odd-numbered night in the last ten days of Ramadan (21st, 23rd, 25th or 27th). Many Sunni Muslims believe it to be the 27th night, while most Shiite Muslims consider it to have happened on the 23rd.
As a result of this uncertainty, many Muslims will treat each odd-numbered day in the last ten days of Ramadan with increased reverence.
There are also some varying opinions on how much of the Quran was revealed on the Night of Destiny. Some Muslims believe that only a few verses of the Quran were first revealed on the night, with the remaining verses revealed over the next 23 years, while some Muslims believe that the whole text was revealed to the angel Gabriel during the night, who then revealed them incrementally to the Prophet Mohammed.
An entire chapter is devoted to the Night of Destiny in the Quran, with the night described as being "better than a thousand months" where the angels and the holy spirit Gabriel engulf the Earth. The Night of Destiny is a highlight of Ramadan. Muslims believe that on this night the blessings and mercy of Allah are abundant and sins are forgiven