I think whatsapp is every people Needs in india.whatsapp provides privare chat which people are sharing there phone numbers. Its provides privacy chats with Each Number. its also provides group chat. just you need to add Peoples into a Group and you all are chat in group.also You can Share photos, Audio and videos.
Also Web Whatsapp provides Chat using Via Your Laptop and Pc Wirelessly ( you able to see your Chat User Interface on your Laptop screen) link is- web.whatsapp.com open on you browser and open whatsapp on your phone- click on option - select whatsapp Web- Scan QR Code -Done.