KARACHI (Staff Reporter): Rupee strengthened against dollar in money market, Dollar traded at lowest rate of Rs 102.70 in cash free market on Monday. According to the details provided by the Forex Association of Pakistan dollar traded at minimum rate of Rs 101.73 and maximum rate of Rs 101.75 in inter bank while it was traded lowest rate of Rs 102.70 and highest rate of Rs 102.90 in open market.