Section 142(1) in The Central Goods and Services Tax Rules, 2017
(1)The proper officer shall serve, along with the -(a)notice issued under section 52 or section 73 or section 74 or section 76 or section 122 or section 123 or section 124 or section 125 or section 127 or section 129 or section 130, a summary thereof electronically in FORM GST DRC-01,(b)statement under sub-section (3) of section 73 or sub-section (3) of section 74, a summary thereof electronically in FORM GST DRC-02, specifying therein the details of the amount payable.