Opposition political parties plays an important role in democracy. They play both positive and negative roles.
Positive Role :
(i) They ensure that political party, in power does not, abuse or misuse its power.
(ii) It exposes the weaknesses of ruling party.
(iii) It keeps a close vigil on the bills and expenditure of government.
Negative Role :
(i) It targets the government and aims at lodging and discrediting the government for all the ills and troubles that people face.
(ii) Through stalling the proceedings of the parliament, dharnas and gheravs, it curtails the progress of the country.
(iii) Sometimes, opposition party opposes every decision of the ruling party whether it is in the favour of the nation or not.