CPI(M):
(i)It supports socialism, secularism and democracy and opposes imperialism and communalism.
(ii)Accepts democratic elections as a useful and helpful means for securing the objective of socio- economic justice in India.

CPI:
(i)Opposed to the forces of secessionism and communalism.
(ii)Accepts parliamentary democracy as a means of promoting the interests of the working class, farmers and the poor.

Advantages of Single Party System:This system makes the government easier in sphere of decision making.

Disadvantages of Single Party System:This system makes the government authoratative.