The Kerala Legislative Assembly election of 1965 was held to elect members to the third Niyamasabha. Communist Party of India (Marxist), which was the splinter faction of Communist Party of India, emerged as the largest party in the assembly with 40 seats, followed by Indian National Congress with 36. However no single party could form a ministry commanding majority and hence this election is considered abortive. On March 25, President's rule was invoked for the fourth time.