Definition: Purab is an anniversary commemorating either birth or death as a holiday festival. But a Gurpurab is a holiday commemorating either the birth or death of one of the ten gurus of Sikhism. A gurpurab is observed with festivities which involve a worship service: * An akhand paath, a 48 hour continuous reading of the Sikh scripture Guru Granth. * Singing hymns during an early morning worship service. * Singing hymns during a daytime or evening worship service. * A parade of the scripture, Guru Granth, accompanied by a procession of worshipers singing hymns. * Singing hymns in an all night worship ceremony * All of the above including fireworks displays over a 3 day period. Pronunciation: purr rub. You must mean Gurpurb: A Sikh festival celebrating a special event associated with the lives of the gurus.