The difference between a state and a national party can be identified as follows: (i) In a state party, the party members aim to highlight the regional interests. On the other hand, a national party gives due importance to national interests. (ii) A state party can contest in elections only in a particular state, whereas a national party can contest in elections all across the country. (iii) Example: BJP and Congress are national parties, whereas Akali Dal and Trinamool Congress are state level parties.