The era of planned development is said to have begun with which of the following ?

The era of planned development in India officially began with the launch of the First Five-Year Plan (1951–1956), which was presented to the Parliament by Prime Minister Jawaharlal Nehru in December 1951. Although several planning initiatives were proposed before independence—including the Bombay Plan (1944), the Gandhian Plan (1944), and the People's Plan (1945)—these were non-governmental proposals or advisory documents. The formal process of state-led planning was institutionalized only after the setting up of the Planning Commission in March 1950. The First Plan prioritized the agricultural sector to ensure food security and stabilize the economy after the turmoil of partition. Thus, while the idea of planning evolved over decades, the actual 'era' of implementation started in 1951.