If you are living in India you can order from Rack The Brain . You can mail them at
[email protected]. They will give you a Lan Lan. The stickers are really bad so order a set of stickers also. It is a fast enough cube. Far better than that 20 rupee one. It will cost you something around 500. You can make the payment through a bank transfer. You would be atleast knowing someone with a bank account if not a credit card.
You can also get Funskool cubes from stores. Go to any Landmark store. They have them or pester your nearby gift shop. They will get it for you. But you will need a silicone lube to get that smooth for which you can mail Pidlite or Rackthebrain.
By the way join the google group speedcubingindia. There you can get more details of competitions and available cubes in India.
Also where in India do you live?