“Principal Officer”, in the case of a company, body or any association of persons, includes the following persons, namely:—

(a) managing director, chief executive officer, chief financial officer, manager, secretary, treasurer, agent or accountant, by whatever designation may be called, or any officer responsible for management of the affairs or of the accounts of the authority, company, body or association; and

(b) any person connected with the management or the administration of company, body or association upon whom the Deputy Commissioner of Taxes has served a notice of his intention to treat him as principal officer thereof;