For how long are the Chief Election Commissioner (CEC) and Election Commissioners appointed in India?

Six years or till the age of 65, whichever is earlier

The correct answer is Option 2 - Six years or till the age of 65, whichever is earlier

The Constitution ensures the security of the tenure of the CEC and Election Commissioners. They are appointed for a six year term or continue till the age of 65, whichever is earlier. The CEC can be removed before the expiry of he term, by the President if both Houses of Parliament make such a recommendation with a special majority. This is done to ensure that a ruling party cannot remove a CEC who refuses to favour it in elections. The Election Commissioners can be removed by the President of India.