Sino-Indian trade is set to cross the $10 billion-mark this year for the first time and New Delhi is determined to further diversify and strengthen bilateral ties, Indian ambassador to China, Nalin Surie has said. "One of the principle efforts from our part is to increase the trade and economic relationship with China,' Mr Surie said. "We should, according to Chinese figures, cross $10 billion in bilateral trade this year,' Mr Surie said here on Thursday night addressing the first-ever interactive session with Indian businessmen and professionals organised by the Indian embassy here.