WhatsApp doesn’t provide any alternative to recover the deleted messages. Also, due to WhatsApp’s encrypted messages mechanism, no third-party application can recover deleted messages.
But there are some apps and methods by which you can retrieve the messages or view the deleted messages from the sender.
How to See Deleted Messages in Whatsapp
Now all the configuration is ready and you just have to open the Antidelete app and view the deleted Whatsapp messages.