Almost every Indian with a phone uses WhatsApp, which makes WhatsApp Channels a huge opportunity for news pages, coaching institutes, shops and creators. The follower count is shown at the top of every channel, and new visitors use it to decide whether to follow.
Global followers are the cheapest. Indian followers cost more but match your audience if you're local. Refill options (30 and 90 days) are available on the global services.
Use your channel's invite link — open the channel → tap the name → Share channel link.