According to the Income Tax Act, if any buyer (Indian resident or NRI) owns more than one property, then only one will be assumed as self-occupied. On other properties, income tax will be levied on the rental income (actual or deemed). Hence, if an NRI owns more than one global property, then income tax will be levied on the Indian property, on the rental income of the Indian property (irrespective of whether the property is rented out or not.)