The easiest way to chat is to download Quicksy from Google Play Store or F-Droid. If you have my phone number, then my contact will automatically show in your Quicksy account. If you are curious why I recommended Quicksy, please read this article. Read here for reasons not to use WhatsApp.
Just scan this QR Code below to add me on Quicksy or any XMPP app.
Email: ravi at ravidwivedi dot in .
Please don’t forget to encrypt your mails with my GPG keys. (Keys created on: 13-June-2021).
Further, I recommend you to read useplaintext.email which explains why you should write emails in plaintext and not in HTML.
My IRC nickname is ravi on irc.libera.chat.