What they have done is, they take normal 256mb pen drives, they flash them and make the size show as 32 GB or whatever. Thats what used to happen before, but now these a-holes have become even more technologically advanced. Now your pen drive will store 32 GB, but it can never be copied back on to your computer or if it can be, the data is corrupted. Since it never stored the files, it merely stored the headers.
Do not go in for such fakes, they're just waste of time and money. The shop keepers tell you then and there, it will work properly, it will store the data, we do not offer any guarantee on anything further.
DO NOT buy such useless fakes.
To buy the original, go and tell them, I want the one that actually stores 32 GB of data. Once they get an idea that the customer knows what bull***t they're pulling off, they will offer you the original pen drives (which I STILL don't trust).
I've had one too many friends who have been fooled by this scheme and the last thing I'd want is to my Tdigit friends to do the same (who definitely should have an edge over others when it comes to tech.)
Advice - Buy from Nehru Place or your local computer store.