​Which of the following statements is INCORRECT regarding the collegium system?​

Correct option is A

The statement that is incorrect regarding the collegium system is that it started in the year 2007: 

Explanation: The collegium system is a system for appointing and transferring judges in the Supreme Court and High Courts. It evolved over time through Supreme Court judgments, not by an Act of Parliament or by a provision of the Constitution.

Here are some other facts about the collegium system:

• The collegium system is headed by the Chief Justice of India (CJI) and four other senior-most judges of the Supreme Court.
• The High Court collegium is led by the incumbent Chief Justice and the two seniormost judges of that court.
• The government can raise objections and seek clarifications regarding the Collegium's choices. 
• The collegium system has been criticized for having caste bias due to the lack of representation of marginalized communities in the Supreme Court and high courts.