(4)Nothing contained in this section shall be a bar for a President of a Village Panchayat continuing as a member in a Block Panchayat or for a Block Panchayat President continuing as a member in a District Panchayat under clause (b) of sub sub-section (1) of section 8 or as the case may be, under clause (b) of sub-section (1) of section 9.