Which of the following is NOT a ground for divorce?

In the context of grounds for divorce, financial mismanagement is not established as a recognized reason for seeking a divorce. The legal grounds for divorce are typically based on the breakdown of the marriage, which includes reasons like adultery, physical or mental cruelty, and prolonged separation.

Adultery is considered a valid ground as it indicates marital infidelity, which can severely undermine the trust and commitment in a marriage. Physical or mental cruelty signifies abusive behavior that can make cohabitation intolerable, providing a strong basis for divorce. Prolonged separation, especially for more than a year, suggests that the marriage has irreparably broken down, which is often accepted as a legitimate reason to petition for divorce.

On the other hand, financial mismanagement, while potentially indicative of personal or relational issues, does not meet the legal criteria for grounds of divorce under most jurisdictions' family law statutes. It may impact the overall dynamics of a marriage but is not classified as a direct cause for divorce in the same manner as the other options listed.