My Recommendation for Diatonic Harmonica model for beginners.

There are so many good models available today in Indian market. 

I always recommend my students to Buy branded models see below. 

Key of C is reccoemnded for beginners. 

Hohner 

Special 20 progressive

Special 20 Marine band

Marine Band crossover 

Suzuki 

Harp master

Blues master

Sydel 

They are little expensive so I don't reccomend for beginners. 

But they have very good harmonicas. 

Above brands have some very good models to offer for beginners and Experienced players.