Shares of State Bank of India SBI.NS was the only scrip in the green on the index with a 0.52% rise. By Chandini Monnappa BENGALURU, Aug 13 (Reuters) - India's main indexes rose on Thursday, powered by gains in metal stocks, while an overnight rally in technology stocks on Wall Street and a surprise rise in U.S. inflation boosted global sentiment. "We are following global markets directionally and metals were waiting for an upside bounce and we are now seeing them catch up," said Deepak Jasani, head of research, HDFC Securities.