Mammillaria species/ cultivars- Bangalore

Cactus For ID : Lalbagh,Bangalore : 08DEC16 : AK-24 : 8 posts by 2 authors. Attachments (1)
An ornamental Cactus seen in their Nursery on 1st Nov.
Pl. Check comparative images at EFI at Cactaceae.
That is a very nice Mammillaria ...,
I do not know the species, but looks really great.
This is Mammillaria sp