Option 1: A form of Marathi poetry that emerged during the Maratha period - This option suggests that Upari refers to a form of Marathi poetry that developed during the Maratha period. However, this is not correct as Upari does not have any connection to poetry.

Option 2: A category of tenancy tenure held under the Maratha regime - This is the correct answer. Upari refers to a specific category of tenancy tenure that existed during the Maratha regime. This means that individuals who held this tenure benefitted from certain rights and privileges in relation to land ownership.

Option 3: A court official during Maratha rule - This option suggests that Upari refers to a court official who served during Maratha rule. However, this is not accurate as Upari is not a designation for a court official.

Option 4: A group of peasants who rebelled against their oppressive landlords under Maratha rule - This option suggests that Upari refers to a group of peasants who revolted against their oppressive landlords during the Maratha rule. However, this is not the correct interpretation of Upari as it does not represent a group of rebels.

Overall, the correct answer is option 2 as it accurately describes U