Mumbai, July 25 -- The dollar index extended rebound above 97 mark on Friday following a streak of decline for most part of the week amid improving sentiments on the back of US trade deals. Meanwhile, greenback gained traction following mixed US data. Data revealed that the number of Americans filing for unemployment benefits dipped below forecasts, suggesting a strong labour market. However, the S&P Global Manufacturing PMI fell into contraction territory, dropping to 49.5 from June's 37-month high of 52 and missing expectations of 52.5 signaling weakness. The Services PMI rose to 55.2, beating the 53.0 forecasts and improving from 52.9 in June, indicating robust growth in the services sector. Meanwhile, US Treasury yields rose with the ...