It is very easy to share product catalogs on WhatsApp through Meesho App:
Select a catalog
Click on "WhatsApp Share" button
Select the group or contact with whom you want to share
WhatsApp allows sharing of 30 images at a time, click on back and share the remaining catalog (if you have more than 30 images)
Once you’ve shared images, click on back again to product description
Note: Meesho’s name or product price is never mentioned when you share the catalog.