" Like r. XIV of the 1920 Classification Rules, r. 55 of the 1930 Classification Rules, as originally framed in 1930, provided that, without prejudice to the Public Servants Enquiries Act, 1850, no order of dismissal, removal or reduction should be passed on a member of a service (other than an order passed on facts which had led to his conviction in a criminal court or by a court martial) unless he had been informed in writing of the grounds on which it was proposed to take action and had been afforded an adequate opportunity of defending himself Detailed provisions were made as to the grounds on which it was proposed to take action being reduced to the form of a definite charge or charges and for the communication thereof to the officer together with a statement of the allegations on which each charge was based and further provisions were made as to the procedure relating to the filing of the defence, the right to cross examine and to give evidence in person or to have such witnesses called as he might wish to examine in his defence.