how do i delete photos without the option to delete?

suji89 wrote:

so there is not options to delete the photos which are copied from iTunes ..? form iPhone.

Not from the phone. Need to sync with iTunes.

If they were synced to the phone from a computer (and it sounds like they were) you delete them by using iTunes and syncing again but with different settings/selections in iTunes. See the following from Keep your photos safely stored and up to date on all of your devices - Apple Support

If you don't want the synced photos on your iPhone, iPad, or iPod touch anymore, turn off syncing in iTunes and they'll be removed from your device. You can turn off syncing for some of your photo albums or all of them at once.

Stop syncing some albums

1. Open iTunes on your computer and connect your iPhone, iPad, or iPod touch.
2. Click on the device icon in iTunes.
3. Click Photos.
4. Choose "Selected albums" and deselect the albums or collections that you want to stop syncing.
5. Click Apply.

Stop syncing all photos

1. Open iTunes on your computer and connect your iPhone, iPad, or iPod touch.
2. Click on the device icon in iTunes.
3. Click Photos.
4. Deselect "Sync Photos" then click "Remove photos."
5. Click Apply.

Learn how to delete photos and videos synced from iTunes when you can't access the originals.

so there is not options to delete the photos which are copied from iTunes ..? form iPhone.