KARACHI: Since Holi is celebrated following the lunar calendar, its dates change year on year. Holi has been mentioned in classic literature. For instance, 4th-century poetry as well as prose like Ratnaval (a 7th-century play).

Holi is an event that has two parts: First day it is observed as Holika Dahan and second day it is celebrated as Rangwali Holi.
Holika Dahan: According to Hindu scriptures god Vishnu helped burn the devil Holika to death. Hence a symbolic pyre is ignited on the first day of Holi symbolically signifying the triumph of good over evil.
Rangwali Holi: It is celebrated the next morning. People, drenched in water, throw gulal (colored powder) on each other.
Newspakistan.tv