Pressure Group Vs Political Party

MeaningPressure Group, refers to the interest group that attempts to influence the government policy, for a definite objective.Political Party alludes to an organization of people that focuses on the acquisition and retention of power through collective efforts.
Aims atExerting influenceAcquiring power
EntityIt is informal, conceited and unrecognized entity.It is formal, open and a recognized entity.
MembershipOnly persons of similar set of values, beliefs and status can join pressure group.People with similar political ideology can become members.
ElectionsThey do not contest elections; they only support political parties.They contest elections and participate in the campaign.
AccountabilityThey are not accountable to people.They are accountable to people.