Solution:According to the Economic Survey 2022-23, India's merchandise exports during 2021-22 were US $ 422.00 billion (US $291.81 billion in 2020-21 and US $ 313.36 in 2019-20) as compared to US $ 613.05 billion of imports during 2021-22 (US$ 394.44 billion in 2020-21 and US$ 474.71 billion in 2019- 20). Hence, statement 1 is correct.
India's imports of iron and steel, chemical fertilizers and machinery have increased in the last few years. Hence, statement 2 is incorrect.
India's service exports during 2021-22 was US $ 254.5 billion (US$ 206.1 billion in 2020-21 and US$ 213.2 billion in 2019- 20) as compared to US $ 147.0 billion of imports during 2021- 22 (US$ 117.5 billion in 2020-21 and US $ 128.3 billion in 2019- 20). Hence, statement 3 is correct.
According to Economic Survey 2020-21, India's current account deficit (CAD) averaged 2.2 percent of GDP in the last 10 years. Continuity of higher merchandise trade deficit is the main reason behind this. However, India's current account balance witnessed a surplus of US $ 23.91 billion in 2020-21 due to COVID-19 pandemic. But again, it flipped into deficit of US $ 38.77 billion in 2021-22 due to sharp increase in merchandise trade deficit. Hence, statement 4 is correct. It is to be noted that UPSC has cancelled this question in its official answer key.