(Reuters) - India gold futures edged higher on Tuesday morning following overseas markets and a weaker rupee, which made the dollar-quoted yellow metal expensive, pushing physical traders to the sidelines, dealers said.
* The most-active gold for October delivery on the Multi Commodity Exchange (MCX) was trading 0.25 percent higher at 23,566 rupees per 10 grams.
* "The physical buying is very slow," said a dealer with a bullion importing foreign bank in Mumbai.
* Overseas gold edged higher, supported by a purchase of 25 tonnes of the precious metal by South Korea's central bank, while investors watched the outcome of a vote on the U.S. debt deal.
* The rupee weakened a tad more as local equities slipped further and dollar buying for Iran oil payment persisted. [INR/]
* The rupee plays an important role in determining the landed cost of the yellow metal, which is quoted in dollars.
* Retail gold demand is expected to gain pace in August, when the festival and wedding seasons start in the world's biggest consumer of bullion.
(Reporting by Siddesh Mayenkar; Editing by Sunil Nair)