excess of money supply hinders the process of economic growth give reason?

The answer given by Dev is correct. Excess of money supply will lead to an increase in general price level prevailing in the economy (or inflation) because the production of goods and services will remain the same. This increase in general price level will lead to an increase in interest rates on investment expenditures resulting in a fall in investment activities in th economy. Hence, economic growth will be adversely affected by such inflationary pressures.