No where
No you can't catch a Tepig in the wild. You have to choose it as a as a starter pokemon.
You cant unless your a cheater.
In Pokemon Black or White, choose it as your starter Pokemon, trade with another Black or White user, or trade it in the GTS. It cannot be found in the wild.
You kill the Gym Leader's Pokemon with your Tepig.
just catch a tympole or basculin or duklett or frillish in wild which are water type
a tepig\
you should get Pokemon white and choose TEPIG AS your starter.
Sorry, you can not get tepig in pokemon diamond version because diamond is a 4th generation game and tepig is a 5th generation pokemon. Get black/white!
oshawott snivy tepig
pignite.
You cannot catch Tepig in the wild. You get it from Professor Juniper at the beginning of the game or have someone trade it to you.
By trade only.