Gold gained 90 rupees, to 20,960 rupees per ten grams at Delhi's bullion market, today, on sustained buying by stockists, amid a firm global trend. Silver climbed 200 rupees, to yet another all-time peak of 49,700 rupees per kilo. Silver has now gained 3,000 rupees in the last three trading sessions.In the global markets, gold rose to a seven-week high of 1,411 dollars an ounce, lifted by unrest in West Asia, and concern that inflation would boost demand for the precious metal. Silver advanced to hit yet another 31-year high of 34.31 dollars an ounce.