Solution:
India has a multiparty system. A multiparty system is one in which a number of political parties exist in the country and contest elections. Unfortunately, they often turn messy and lead to political instability. This is because the votes get divided between numerous parties. Often, no party gets a clear majority, and a coalition government has to be formed, which is unstable.India has a multiparty system because, since the freedom struggle, it has had many different political views and ideologies. And everyone has the freedom and right to form a political party or organisation if they wish. There are also parties based on religion and caste, increasing the number.
Hence, both the Assertion and Reason statements are true, but the Reason is not the correct explanation of the Assertion.