Gold prices surged at the bullion market here today on heavy stockist and investor demand amidst firm jewellery off-take following a rally in overseas markets. Silver also bounced back on hectic speculative demand. Standard gold (99.5 purity) strengthened by Rs 135 to end at Rs 29,045 per 10 gm from Thursday's level of Rs 28,910. Pure gold (99.9 purity) hardened by Rs 130 to finish at Rs 29,180 per 10 gm from Rs 29,050 yesterday. Silver ready (.999 fineness) spurted by Rs 550 per kg to conclude at Rs 56,800 as against Rs 56,250 previously. In New York,gold advanced on weaker dollar amidst expectations of further economic stimulus to shore up US economy,the world's largest. Gold for June delivery zoomed USD 18.20 to USD 1,660.50 an ounce on the Comex division of the NYMEX late yesterday. May silver contracts rose 85 cents to USD 31.21 an ounce.