"100. Assessment in certain cases.- (l j-The order of assessment made under sub-section (1) of section 62 shall be issued in FORM GST ASMT-13 and a summary thereof shall be uploaded electronically in FORM GST DRC-07.
(7) The proper officer shall issue a notice to a taxable person in accordance with the provisions of section 63 in FORM GST ASMT-14 containing the grounds on which the assessment is proposed to be made· on best judgment basis and shall also serve a summary thereof electronically in FORM GST DRC-01, and after allowing a time of fifteen days to such person to furnish his reply, if any, pass an order in FORM GST ASMT-15 and summary thereof shall be uploaded electronically in FORM GST DRC-07.
(8) The order of assessment under sub-section (1) of section 64 shall be issued in FORM GST ASMT-16 and a summary of the order shall be uploaded electronically in FORM GST DRC-07.
(9) The person referred to in sub-section (2) of section 64 may file an application for withdrawal of the assessment order in FORM GST ASMT-17.
(10) The order of withdrawal or, as t_he case may be, rejection of the application under sub-section (2) of section 64 shall be issued in FORM GST ASMT-18.".