1TB drive not detected on mac

Recently purchased 1TB Passport size external hard disk…by default it was Ntfs so kept it like that only…i successfully backed up about 700GB from my mac, as it has Tuxera Ntfs support. After backing up i plugged it again, but the hard disk was not detected, i check on my windows lap top there i could see my hard disk…i am confused why i cannot see my hard disk on mac…?? as i see it properly on windows.
Yes my other NTFS support storages can be detected on mac…
please help
Thanks

Hello, navneet_kedar

Well, there could be multiple reasons for the issue that you are facing, I would recommend you to try contacting WD’s Technical Support about this.

To Contact WD for Technical Support
http://support.wdc.com/support/case.aspx?lang=en