"twenty-four months" is a colloquial way of referencing a period of two years.
चौबीस महीने
English Usage: The car lease term is twenty-four months.
Hindi Usage: कार पट्टे की अवधि चौबीस महीने है।
choubis mahine, chhaubis mahine, chaubis mahine, chhabbis mahine, chauvis mahine