Mr Lim explained that around the time of GE 2011, there is an age limit for the secretary-general of the NTUC, which he also is.
He said that if a successor could not be found by the next GE, it would be a problem and he would step down.
However, he added that the age limit has since been revised to 62, and since he is 60 this year, he will continue to contest in the next GE.