Multi-party system is a system in which multiple political parties across the political spectrum run for national election.
India did not adopte this system, but as there are so many religions and caste systems ,a group of people of a particular society or religion made a political party and they didn't want the ruling party to fulfill their demands and they also had a little ego and attitude because of which they say that they will themselves rule the government.
Multi part y system is in which more than one party owns a country.India has adopted this party because of the diverse nature of our India