Open Google Play Store and search for "happy Holi 2022 stickers".
From the search results, select the one that looks good with a higher user rating and downloads.
Click on install below the name of the sticker pack on Google Play Store.
Once installed, click on open and allow the sticker pack to access storage and media permissions.
Select "Festival Stickers" in the menu that appears and then tap on "Holi Stickers".
In the menu that opens, tap on "Add to WhatsApp" that is it.
Now open WhatsApp and head over to the chat where Holi stickers are to be sent.
Open the stickers section and select from the new Holi stickers added to the collection.