Answer: Option [A]The concept of Five Year Plans in India was introduced by Jawaharlal Nehru. The first Indian prime minister, Jawaharlal Nehru, presented the First Five-Year Plan to the Parliament of India and needed urgent attention. K.N Raj, a young economist, argued that India should "hasten slowly" for the first two decades. It mainly addressed the agrarian sector, including investment in dams and irrigation.