Turbinicarpus horripilus

Turbinicarpus horripilus (Lem.) V. John & Ríha, Kaktusy 19:22. 1983 (syn: (≡) Gymnocactus horripilus (Lem.) Backeb.; (≡) Mammillaria horripila Lem. (basionym); (≡) Neolloydia horripila (Lem.) Britton & Rose; (≡) Thelocactus horripilus (Lem.) Kladiwa);
   

Semi-desert vegetation among calcareous rocks.     

Native: Mexico (Hidalgo)
The extent of occurrence is 500 km² and is known from only a few subpopulations which are continuing to decline due to collecting.     
 

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Plants from Cactus Garden: Cactus 2 for id from Cactus garden.. : Attachments (1). 4 posts by 3 authors. 
This one again shot from Cactus garden, Panchkula is being posted for identification…experts please help….

It is Gymnocactus sp.

I’m no expert, but that looks like a Gymnocactus, horripilus perhaps?

Agree with Gymnocactus horripilus