Abstract: For all laws, rules and regulations including family laws, the main sources ofderivation are the Holly Quran and Sunnah. In Islamic terminology, all of the above rules of conduct, sofor expressed are called shari'ah. Not only laws related to family code or rituals are derivedfrom the same sources, rather all economic, political and social rules and regulations are also derivedfrom these Fundamentals ofIslamic Shari'ah. In an Islamic Society, family holds an important position like an institution. All the members of the family including women, as mothers, sisters, daughters or wives can play their role in various capacities. The most important points in family matters are related to marriage, divorce, Iddat, Raza'at, Hibba and inheritance, etc. keeping in view the emerging scenario and contemperory issues, this article discusses the problems related with family matters, particularly the issues of monogamy (marriage with one woman) and bigamy (Marriage with two women) . These laws compiled in the muslim family laws of Ordinance 1961, are critically analyzed by the renown scholars of Pakistan in this paper.