The Planning Commission of India opted for five year plans and that finds similarity with-

USSR

The correct answer is Option (2) → USSR

The Planning Commission of India's adoption of five-year plans finds similarity with the USSR (Union of Soviet Socialist Republics). The Soviet Union was a pioneer of state-led economic planning, using a series of five-year plans to industrialize and develop its economy. India's first Prime Minister, Jawaharlal Nehru, was greatly inspired by the Soviet model of economic planning, believing it was the best way to address the immense challenges of poverty and inequality in post-independence India.