Proprietor can change or not in GST

Brajbihari Gautam (63 Points)

05 April 2018  
Dear sir,
My Question is that One person who was lady Get the Gst No. In July but now she has died then his business can transfer or not his son's Pan Card and old Gst No. if yes then what is the process .
if not then what I Can Do because she is my client