Optional Accessories for Canon Powershot A590IS

Canon prescribes the following Optional Accessories for Canon Powershot A590IS:

1. Tele-converter Lens TC-DC52A
2. Wide converter WC-DC52
3. Close-Up Lens 250D (52mm)
4. High Power Flash HF-DC1

With the postscript “Conversion Lens Adapter LA-DC52G required”
Can anyone tell me where I can buy those in India and how much money I will have to release for those?