G, a Hindu girl, aged 14 years, marries B, a Hindu boy, simply by exchange of garlands in a temple in…

A Hindu marriage must be solemnized with customary rites and ceremonies under Section 7 of the Hindu Marriage Act, 1955; a mere exchange of garlands is not valid solemnization, so the first marriage was void and "G cannot be punished for bigamy because her first marriage was not valid on account of improper solemnization of marriage". Impotency makes a marriage only voidable and underage marriage is not void under the Act, so neither is the reason.