Whether input allowed with old gst number

ravi k (internal auditor) (34 Points)

14 November 2018  

we have migrated from vat to gst and got alloted gst provisional id and we have given to some vendors and

they quoted our provisional number but due to not having password and reset problem in july 2017 we have

to apply for new registration. we obtained registration in september, 2017. Now those bills we have taken

input. but they are not reflected in our gstr2 but the registration number still shows our company name

what is the remedy., whether we have to forego the input or we can claim the input