Why benzylamine more basic than aniline?

Explanation

Basic character of amines is due to the availiblity of electrons pair on

In aniline, the lone pair of electrons on N-atom is involved in resonance with the benzene ring. The - R effect of benzene ring decreases the availability of electron pair on N-atom and hence basic character decreases.
In benzyl amine, the benzene ring is not directly bonded to the N-atom and hence `-R` effect of benzene ring cannot decrease the availability of electron pair on N-atom. Hence benzylamine is more basic than aniline.