Issue for filling income tax return

RAVINDRA GANGADHAR DEVALE (TAX PRACTITIONER) (286 Points)

20 August 2019  
Respected sir,
My client register in Gst from
01 Oct 2018 and he filled his Gst return nill so my query is can I show
my income before 01 Oct 2018
in his income tax return. because after 01 Oct he filled his nill Gst return.