JUDGMENT :

R.SUBHASH REDDY, J.

1. This appeal is filed by the Himachal Road Transport Corporation and another, aggrieved by the judgment and Order dated 08.01.2009, passed by the High Court of Himachal Pradesh, at Shimla in CWP No. 1362 of 2001.

2. The Himachal Road Transport Corporation is established under The Road Transport Corporations Act, 1950. The employees of the Corporation were governed by the Contributory Provident Fund Scheme (CPF). The appellant-Corporation introduced a Pension Scheme in the year 1995, by issuing a Notification dated 06.10.1995 and adopted Central Civil Service (Pension) Rules, 1972. The second appellant has approved the Scheme formulated by the Corporation. The Pension Scheme was given effect to from 05.06.1995, that is from the date on which Scheme was approved by the Cabinet/ Government. For the employees who retired from 05.06.1995, till the date of notification, i.e, 06.10.1995 and for the employees in service, an option was given either to opt for Pension Scheme, or to continue under the Contributory Provident Fund. Clause 5 of the Scheme, stipulates eligibility criteria to opt for Pension Scheme.

3. The respondent-Union, consisting of the employees