Explanation:

1. Correct - Articles 5 to 11 in Part II of the Indian Constitution deal with citizenship.
2. Incorrect - The President does not regulate the right of citizenship in India. Citizenship is regulated by law, notably the Citizenship Act of 1955, and administered by the Ministry of Home Affairs.
3. Correct - The Citizenship Act of 1955 supplements the constitutional provisions and provides further details on acquiring and losing citizenship.
4. Correct - Enemy aliens do not enjoy the benefits of the procedural provisions in Clauses (1)-(2) of Article 22, which mainly deal with detention and arrest procedures.

So, three out of the four statements are correct.