(1) The Chairman, Vice Chairman or a Member of a Tribunal shall, if he is a serving Judge of the High Court or a serving member of the Indian Administrative Service or he is serving officer of the Department of Excise and Taxation, Punjab , not below the rank of Additional Commissioner , be entitled to such kinds of leave including casual leave as is admissible under the provisions of Service Rules applicable to him and if he is a retired Judge of the High Court or a retired member of the Indian Administrative Service or he is retired officer of the Department of Excise and Taxation, Punjab ,not below the rank of Additional Commissioner, he shall be entitled to such kinds of leave including casual leave , as was admissible immediately before his date of retirement according to Service Rules applicable to him: