http://www.investmauritius.com/work-live/op.aspx
Occupation Permit
The Occupation Permit (OP), which is a combined work and residence permit, allows non-nationals to reside and work in Mauritius. Non-citizens, above the age of 50 years, may also choose to retire in Mauritius under a Residence Permit (RP).
A non-citizen can apply for an OP/RP under any of the following 4 categories:
Investor: The business activity should generate a turnover exceeding MRU 4 million annually with an initial investment of USD100,000
Professional: Basic salary should exceed MRU 60,000 monthly. However, the basic salary for professionals in the ICT Sector should exceed MRU 30, 000 monthly. For all applications submitted prior to 31 October 2015, the salary threshold of MUR 45,000 still applies.
Self-Employed: Income from the business activity should exceed MRU 600,000 annually for the first two years of activity with an initial investment of USD 35,000.
The annual income has been increased from MUR 600,000 to MUR 1,200,000 as from the third year of activity.