change of bank & work address

as per GST registration rule dealer has to inform TO THE department in form number GST REG14 within 15 days from the date of such changes
as in your case place and bank account is changed you have to submit and amend the same through form number GST REG 14
at present the said form is not available in GST site so you can update as and when the same is available

ok sir thanks

now after I m clicking amendment of registration non core fields it is showing all details but I m not able to change premises address & bank detail