EPF Registration on shram suvidha portal

Dear All,
I am unable to upload the pdf documents (590kb) on shram suvidha portal during the registration of PF & ESIC. When we are going to upload the documents it is taking more and more time to upload but finely it was not uploaded.
So you are request to suggest us how can i upload the document on the portal so that we can complete the registration process.
I hope some one help us.
Thanks & Regards
Santosh Kumar

Hope your registration is done now if not then try on Chrome. It is most compatible with shram suvidha portal.