Gst turnover rs.22 lacs in fy 18-19, since threshold limit increase to 40 lakhs in 19-20

My client is Cake Shop  manufacturers and retailers,  GST TIN holder having turnover near to 22 lakhs for last for 3 years.  Now threshold exemption limit have been increased to 40 lakhs.   My question is,  in FY 2019-20 whether I have to cancel GST registration ?.  Please reply.