29. Two things are quite clear from the narration of facts and the chart. Firstly, that several opportunities were given to the employees of the RSEB (and for prolonged periods) to switch over from the CPF Scheme to the Pension and GPF Regulations. It is stated in the rejoinder affidavit filed by the RSEB that in response to the various notices, out of about 50,000 of its employees, as many as about 46,000 had exercised their option at different points of time to switch over from the CPF Scheme to the Pension and GPF Regulations. Therefore, if some of the employees did not make the switch-over, it may be for reasons personal to them. Secondly, the switch-over option was given to various categories of employees – regular employees, daily rated employees, work charge employees, retired employees and legal representatives of deceased employees. Within these categories were included senior and junior officers, technical and non-technical cadre. In other words, both high ranked and lower ranked staff were included for the purposes of the switch-over option.