(d)who has been convicted by a court for an offence involving fraud, shall be qualified to represent an assessee under sub-section (1), for––(i)all times, in case of a person referred to in clause (a);(ii)such time as the Principal Chief Commissioner or Chief Commissioner or Principal Commissioner or Commissioner may by order determine, in case of a person referred to in clause (b);(iii)the period during which the insolvency continues, in case of a person referred to in clause (c); and(iv)ten years from the date of conviction, in case of a person referred to in clause (d).