Gold rose 50 rupees, to 20,650 rupees per ten grams at Delhi's bullion market, today, on marriage season and festival demand. Silver gained 175 rupees, to 44,800 rupees per kilo, on increased off take by industrial units and coin makers.In the global markets, gold climbed 0.5 per cent, to 1,376 dollars an ounce. Gold rallied, as concerns that Europe's sovereign-debt crisis might worsen spurred demand for a safe haven investment.