India has implemented 12 Five Year Plans since 1951 to guide its social and economic development. The Plans aimed to achieve growth, modernization, self-reliance, and equity. They focused on developing infrastructure like irrigation, energy, transportation and boosting key industries. While targets were sometimes missed due to challenges like droughts and wars, the Plans helped India rebuild its economy after independence and transition to a mixed model of socialism and capitalism. The 12th and last Plan ended in 2022 as India's development is now guided by other mechanisms.