A marriage may be so lemnized between any two Hindus, if the following conditions are fulfilled, namely:? (i) neither party has a spouse living at the time of the marriage; (ii) at the time of the marriage, neither party? (a) is incapable of giving a valid consent to it in consequence of unsoundness of mind; or (b) though capable of giving a valid consent, has been suffering from mental disorder of such a kind or to such an extent as to be unfit for marriage and the procreation of children; or (c) has been subject to recurrent attacks of insanity 1***;] (iii) the bridegroom has completed the age of 2 [twenty-one years] and the bride, the age of 3[eighteen years] at the time of the marriage; (iv) the parties are not within the degrees of prohibited relationship unless the custo m or usage governing each of them permits of a marriage between the two; (v) the parties are not sapindas of each other, unless the custom or usage governing each of them permits of a marriage between the two;