Trade with India had a big influence on the Persian Gulf area. For instance, Harappan weights and measures became the standard across the region. The locals also copied the Harappan seals. This was the beginning of a long commercial and cultural relationship that, despite booms and busts, continues to this day. Till as recently as the 1960s, the Indian rupee was used as legal tender in Oman, Qatar, Bahrain and the UAE! For a while, the Reserve Bank of India even issued a special Gulf rupee for use in these countries. It was only when the Indian rupee sharply devalued in June 1966 that these
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