(1)No proceedings civil or criminal shall be instituted against any person in respect of any act done or purporting to be done in the execution of his duty as a servant of the Crown in India or Burma before the relevant date, except with the consent, in the case of a person who was employed in connection with the affairs of the Government of India or the affairs of Burma, of the Governor-General in his discretion, and in the case of a person employed in connection with the affairs of a Province, of the Governor of that Province in his discretion.