Are the common practices in Pakistan during wedding ceremonies, such as women applying oil to the bride's head and feeding her sweets before applying henna to her palms, considered haram in Islamic law?

The basic principle concerning customs followed by people, such as "celebrating a wedding" in a specific way, is permissibility, as long as they do not violate Islamic law or involve imitating the enemies of Islam. A custom is considered in Islamic jurisprudence, if it is consistent or prevalent. It has been reported from Ibn Mas'ud (may Allah be pleased with him): "Whatever the Muslims deem good is good in the sight of Allah." The fundamental principle regarding customs is permissibility, except for what Islamic law indicates as forbidden.