"aggregate turnover in precd.fin year "gstr -4

"Aggregate turnover in the preceding fin.year column"in GSTR -4 return. Assessee registered in iind quarter of year 2017.

My query is -what would the date be taken into consideration ?

.From the date of registration ie( 3 quarters ) or full 12 months will be taken into consideration in the GSTR 4 of first fin year 2018-19(april to june) .