Are deleted WhatsApp messages still recoverable even after deleting a contact I deleted a particular WhatsApp conversation. Then I deleted the same contact. Now I uploaded the contact again but I am unable to see my deleted messages. I don't see the option of restoring messages after reinstalling WhatsApp. Why is this so? And is there a way out?
If you have automatic backups sent to Google Drive, that will be your easiest solution. If not, search for a local backup on your phone itself and recover with this method:

Your phone will store up to the last 7 days worth of local backup files (Google Drive will only have the most recent). If you wish to restore a local backup which is not the most recent, you will need to do the following:

Download a file manager.
In the File Manager, navigate to sdcard/WhatsApp/Databases. If your data is not stored on the SD card, you may see internal storage or main storage instead of sdcard.
Rename the backup file you wish to restore from msgstore-YYYY-MM-DD.1.db.crypt12 to msgstore.db.crypt12. It is possible that your earlier backup may have been on an earlier protocol, such as crypt9 or crypt10. Do not change the number of the crypt extension.
Uninstall WhatsApp.
Install WhatsApp.
Tap Restore when asked.


https://www.whatsapp.com/faq/en/android/20887921