What are the necessary qualifications that a person should have to become a Judge of the Supreme Court?

To become a Judge or the Chief Justice of the Supreme Court, a person should possess the following qualifications :

1. He must be a citizen of India.
2. He must have worked as a Judge in any of the High Courts continuously for not less than five years.
   OR
   He must have been an advocate of a High Court or of two or more such courts for at least 10 years.
   OR
   He should be a distinguished jurist in the opinion of the President.