Hello Pradip (pradip3572),
Thank you for posting your concerns on our community boards and I'll be happy to help you in this regard.
We understand that you had purchased a camera from a seller on our platform. Since, you are facing technical issues with the functioning of the camera we would recommend you to contact your seller (in this case galaxy international) and request for resolution.
We would also like to highlight that in case your issues go unresolved and unnoticed, you can update this thread with your issues and I'll be able to guide you further for alternate options.
Keep Posting!!
Regards,
Indraneel