(b) 2 and 3 only
Aurang was a Persian term referred to as a warehouse.
It is a place where goods are collected before being sold.
The term also refers to a workshop.
Hence Pair 1 is not Correct.
The term banian means merchant.
The banian was engaged by an individual western merchant or a firm to work for them as a broker, interpreter, and agent.
Hence Pair 2 is Correct.
Under the ryotwari settlement system, the government recognized mirasidars as the sole proprietors of land.
They acted as the Designated revenue payer to the State.
Hence Pair 3 is Correct.