With its continued push into becoming a replacement for WhatsApp telegram has now added the ability for users to transfer your chat history including videos and documents from WhatsApp directly into telegram.
You will need the new updates of both applications to move your WhatsApp chat history to Telegram. When you have this, you should follow the steps below to import your chats from WhatsApp to Telegram.
It is important to note that currently there is no way for you to batch import conversations. You're going to have to switch from individual conversations from WhatsApp to Telegram. That said, here are the measures that will help you achieve that.
Open WhatsApp and tap on the chat you want to export
Tap the three dots tap more and Export Chat,
choose Telegram in the Share menu
tap import to Telegram
Swipe left on a chat, then choose Export Chat.
Choose Telegram in the Share menu
Messages will be imported into the current day but will also include their original timestamps. All members of the chat on Telegram will see the messages.