Salutations niveditha64,Â
We understand that the sync of your photos to iCloud over cellular data is taking longer than anticipated.Â
This step can take some time, though it almost appears to be uploading more items than are in your Photos library. Did you recently delete some data from the Photos app? Do you have a strong Wi-Fi network you can connect to? That should speed up the process. Also, if you pause and then unpause the upload then check again a bit later do you notice any progress. Another good step to take is to restart your iPhone to refresh things. Restart your iPhone
Let us know how that goes.Â