Citizenship and Immigration Canada (CIC) allows you to apply for Canadian Citizenship after you have been a physical resident of Canada for three years (1095 days)
out of the four years immediately preceding your application. Where exceptional circumstances exist, however, you may be allowed to apply even if you have not been physically resident in Canada for the required 1095 days.
To be eligible to become a Canadian citizen, you must meet the CIC stipulated conditions in all of the following areas:

• Age
• Permanent resident status
• Time you have lived in Canada
• Income tax filing
• Intent to reside,
• Language skills
• How well you know Canada
• Prohibitions.