A Void Marriage, also known as nullity of marriage, refers to a marriage that is considered legally invalid or void from its inception. In other words, a void marriage is one that is deemed to have never legally existed. There are specific grounds and circumstances under which a marriage may be declared void under Indian law: Prohibited Relationships: Marriages between parties who are closely related by blood are considered void. For example, marriages between siblings (full or half-blood), between a parent and child, or between an uncle/aunt and niece/nephew are prohibited and void. Bigamy or Polygamy: If either party is already married and the previous marriage is still subsisting, the subsequent marriage is void. In India, bigamy (marrying more than one person at the same time) and polygamy (having multiple spouses concurrently) are prohibited under most personal laws and result in void marriages. Mental Incapacity: If either party is incapable of giving valid consent to the marriage due to unsoundness of mind or mental incapacity, the marriage may be considered void. Underage Marriage: If one or both parties are underage at the time of marriage and do not meet the legal age requirements for marriage (which vary by personal laws), the marriage is voidable and can be declared void upon application to the court. Invalid Ceremonies: Marriages conducted without proper ceremonies or in violation of essential marriage formalities prescribed by law (such as registration requirements) may be deemed void. Impersonation: If one of the parties to the marriage is impersonating someone else, leading to a fraudulent marriage, it may be considered void. Prohibited by Law: Marriages that are expressly prohibited by law, such as certain inter-faith marriages that are not conducted in accordance with legal requirements or without the necessary permissions, may be void. It's important to note that a void marriage is different from a voidable marriage. A void marriage is invalid from the beginning, while a voidable marriage is initially valid but can be annulled by a court upon the application of one of the parties due to specific legal grounds, such as fraud, coercion, or non-consummation. When a marriage is declared void, it has no legal effect, and the parties are considered to have never been legally married. This can impact issues such as property rights, inheritance, and other legal aspects that are typically associated with valid marriages.