Which of the following pairs of land category and its description, as…

The correct answer is Option (2) → Polaj - land annually cultivated for each crop in succession and never allowed to lie fallow

Option (1) Chachar - land left out of cultivation for a time so that it may recover its strength — Incorrect. This describes Parauti. In the Ain, Chachar is land that has lain fallow for three or four years.

Option (2) Polaj - land annually cultivated for each crop in succession and never allowed to lie fallow — Correct. In the Ain, Polaj is land cultivated every year for each crop in succession. It is never allowed to lie fallow, so the pair is right.

Option (3) Parauti - land annually cultivated for each crop in succession — Incorrect. Parauti was land kept out of cultivation for a while. Land cultivated for every crop in turn was Polaj, so the pair is reversed.

Option (4) Banjar - land that has lain fallow for three or four years — Incorrect. Land that has lain fallow for three or four years is Chachar. Banjar was land uncultivated for five years and more.