Whatsapp is not available to all Nokia phones, and unfortunately the C2 is one of the not supported phones.
There are, however, a couple of Youtube videos that show you a method that they claim makes Whatsapp work on a C2. You can find these videos easily enough buy searching for them, but I cannot guarantee them working, as officially, Whatsapp is not compatible with your phone.
Answers & Comments
No sir it is working on my phone but only one problem that after step 2 it is say's connection failed................
Whatsapp is not available to all Nokia phones, and unfortunately the C2 is one of the not supported phones.
There are, however, a couple of Youtube videos that show you a method that they claim makes Whatsapp work on a C2. You can find these videos easily enough buy searching for them, but I cannot guarantee them working, as officially, Whatsapp is not compatible with your phone.