The Collegium system is one where the Chief Justice of India and a forum of four Senior- most Judges of the Supreme Court recommend appointments and transfer of judges. However, it has no place in the Indian Constitution. The system was evolved through Supreme Court judgments in the – Three judges cases (October 28, 1988)
ART 124 OF THE CONSTITUTION SAYS: “Every Judge of the Supreme Court shall be appointed by the President by warrant under his hand and seal after consultation with such of the judges of the Supreme Court and of the high court in the state as President may deem necessary for the purpose and shall hold office until he attains the age of 65 years.
Provided that in the case of appointment of a judge other than the chief justice, the Chief Justice of India shall always be consulted.