Yes, Indian law allows the divorce on this ground that marriage happened before the age of fifteen years. In Hindu law, a girl who got married before age of Fifteen years can get Divorce after attainment of age of fifteen years under Section 13(2)(iv) of Hindu Marriage Act, 1955. But, the option of Divorce on this ground is only available up to the age of 18 years. After attaining the age of 18 years, Divorce cannot be granted for the reason that marriage got solemnized before the age of 15.
In Muslim law, if a girl has been given in marriage by her father or other guardian before she attained the age of fifteen years, she can repudiate the marriage before attaining the age of eighteen years under Section 2(vii)ofThe Dissolution of Muslim Marriages Act, 1939.But, the marriage must not been consummated.
Section 3 of the Prohibition of Child Marriage Act, 2006, allows the annulment of marriage (declaration of marriage as null and void, like it never happened) by either boy or girl who was child (For male, who is not of 21 years or for female who is not of 18 years) at the time of their marriage. This petition to get their marriage annulled has to be filedby the girl or boy and if they are minor, it can be filed by their next friend. This can only be filed up to the age of 2 years after majority (i.e. up to the age of 20 years).
Also Read: Procedure for Divorce in Hindu Law in India