1. - All these writ petitions relate to selections made by the Rajasthan Public Service Commission (hereinafter referred to as the Commission') for appointment, by way of direct recruitment, on the post of Assistant Conservator of Forest and Ranger Grade I. The post of Assistant Conservator of Forest (for short 'ACF", is a post included in the Rajasthan Forest Service and recruitment to the pots in the Rajasthan Forest Service and conditions of service of the persons appointed to the said post is regulated by the Rajasthan Forest Service Rules, 1962 (herein after referred to as the State Service Rules'). Under the State Service Rules, direct recruitment to the post in the Service is to be made by a competetivc examination conducted by the Commission. The said examination consists of written test to be followed by personality and viva voce examination. The written to test consists of 5 papers of 100 marks each, i.e. 500 marks in all. Three papers are for compulsory subjects and two papers are for optional subjects. Under Rule 24 of the State Service Rules, it is provided that the Commission shall call for interview such of the candidates who have obtained a minimum 35% mark