Which of the following pramanas is used by the classical Indian school of logic to prove the existence of God?

Nyaya establishes the existence of God through inference.

The world, being an effect, is argued to require an intelligent maker.

From the observed effects the unseen cause (Ishvara) is inferred.

This causal reasoning proceeds through the pramana of anumana.

God is not perceived but reasoned to from the available evidence.