Dear Madam
Usually the court will take into consideration the last resided place as jurisdiction to file petition. Since the last resided US cannot be taken into consideration. the husband filed it in Mumbai as it is your matrimonial house (as you have not disclosed the place the husband place of residence) If your husband does not belong to Mumbai the said divorce petition definitely dismissed. The relevant judgments cannot be provided since it requires lot of research work and the family court is a fact finding court.