Digital Gold by Tanishq, MMTC PAMP?

Hi All,

Has anyone tried buying, selling and tried getting physical delivery of Gold via Tanishq?
What are the charges?
Minimum amount after which investor can collect gold from Tanishq store?
What regulation these digital gold schemes have to follow?
Do they charge making charges of Coin/Bar?

Comparison of Tanishq vs MMTC PAMP? Any additional useful information and things to be cautious of?