Good and services tax

Yami Soni (145 Points)

15 August 2020  
time and value of supply
in module general rule under section 12 is given time of supply of goods under forward charge is date of issue of invoice or last date of issue of invoice under section 31 or date on which payment is recorded in the books of accounts audit on which payment is credited with our is earlier will be the time of supply of goods
but under section 12 clause to clause 2 special procedure under section 148 for payment of tax in case of goods where date of issue of invoice or last date of issue of invoice under section 31 whichevr is earlier will be the time of supply of goods what
what are the specified categories of goods in the special procedure
please explain both the concepts both are too confusing