Contestants experts in baking n cake making

One thing I noticed this season is many contestants are experts in cake or baking.. I could see Drishti is expert in Patessiere and Bhakti has her own cake making small venture (Bell peppers Inc). and even Neha n Nikita is good at baking. May be some have learnt themselves.. But sure Drishti n Bhakti have gone thru professional training may be thru classes or some certificate course or diploma in baking... so My question is if they have any such qualification [Apart from Hotel mangement Degree] are they still eligible for the contest??

Keenly thought of must say 😆