To register your OPC in Karnataka, you must meet the following criteria 1.Indian Citizen and Resident: You must be a citizen of India and have resided in the country for at least 182 days in the preceding year. 2.Business Activities: OPCs are restricted from operating in certain sectors like banking and insurance. Be sure your business idea falls outside these restricted categories. 3.Financial Limits: The authorized share capital of your OPC cannot exceed Rs. 50 lakh, and your average annual turnover cannot surpass Rs.2 crore.