What was a notable consequence of the non-Congress coalition governments in the States after the 1967 elections?

They often faced instability, losing the majority and requiring new combinations or President's rule was imposed.

Following the 1967 elections, it became evident that while the Congress managed to maintain control at the Centre, its majority had diminished, and it yielded power across several States. The outcomes of these elections were significant, demonstrating the Congress's vulnerability to defeat in the electoral process. However, despite this, a viable alternative to the Congress was not yet apparent. In most cases, the non-Congress coalition governments in the States faced a short-lived existence. They encountered challenges in sustaining their majority, often necessitating the formation of new alliances or the imposition of President's rule.