Pranams Swamiji,

I have a doubt regarding agamas. We say agamas are an important part of any Hindu temple.

e.g., we talk about Vaikhansa and Pancharatra agamas as important agamas of Vishnu temples but these seem limited only to temples in south India?

Are agamas followed only for south Indian temples?

Temples such as Badrinath, Mathura, Puri or even Malainadu divya desams follow which agama?

Regards,

Srivats