NEW DELHI (Reuters) - Indian Prime Minister Narendra Modi and his Chinese counterpart Xi Jinping agreed that more needed to be done to avoid future border disputes, India s foreign secretary said on Tuesday. Modi and Xi on Tuesday met for more than an hour on the sidelines of the BRICS nations summit in the Chinese city of Xiamen, a week after agreeing to end a more than two-month long stand-off along their disputed border.  One of the important points made during the meeting was that peace and tranquility in the border areas was a prerequisite for the further development of our relationship,  S. Jaishankar told reporters. 