Consider the following States: I. Gujarat II. Karnataka III. Maharashtra IV. Tamil Nadu. The descending order of these States with reference to their level of Per Capita Net State Domestic Product is

1. The question asks for the descending order of the given States based on their Per Capita Net State Domestic Product (NSDP) around the year 2001. 2. Per Capita NSDP is a measure of average income per person in a state. 3. Based on economic data from around 1999-2000 or 2000-01: - Maharashtra (III) generally had the highest Per Capita NSDP among these four states. - Gujarat (I) and Tamil Nadu (IV) had high Per Capita NSDP, typically ranking below Maharashtra but significantly above the national average. Data suggests Gujarat was often slightly ahead of or very close to Tamil Nadu during this period. - Karnataka (II) had a lower Per Capita NSDP compared to the other three states, though still relatively high in the national context. 4. Therefore, the likely descending order is Maharashtra (III) > Gujarat (I) > Tamil Nadu (IV) > Karnataka (II).