cancellation of registration

SAUD AHMED (Student CA IPC / IPCC) (72 Points)

31 May 2018  
My Turnover in PY exceed 20 lakh now I m getting registered in this year just only to file ITR. After registration and filing of ITR, I want to cancel my registration( to avoid GST procedure) in current year only and my turnover will be less than 20 lakh.
Can I cancell registration just after registration even though I have taxable supply in this year not exceeding 20 lakh?
thank you