share(send) image from website (Browser) to whatsapp.

Hello Kavitha, this might help you

https://www.c-sharpcorner.com/code/2085/send-image-audio-video-and-message-from-C-Sharp-to-whatsapp.aspx

https://www.c-sharpcorner.com/article/create-a-whatsapp-messenger-using-Asp-Net/

https://www.youtube.com/watch?v=mDYJziUrESk

https://whatsmate.github.io/2017-09-14-send-whatsapp-image-c-sharp-dot-net/

https://www.quora.com/Can-I-use-WhatsApp-to-share-images-from-a-website

I think below one paid services once check it.

https://www.twilio.com/docs/whatsapp/tutorial/send-and-receive-media-messages-whatsapp-csharp-aspnet