There are three major differences between a national party and regional/state party: 1.National parties have influence all over the country or in several states of India. The influence of a state party is limited to a state or region. 2.National parties take interest in national as well as international issues; whereas regional or state parties are interested in promoting regional/state interest only. 3.The national parties have to harmonise the national as well as state interests; whereas state parties usually stand for greater autonomy for states.