MOSFET discharge (turn off)
I have got no load.Its just to observe if the voltage comes
  out fine or not> I intend to connect a BLDC Motor to it. Vinod.


Without a load the time delay in switching-off may easily be several milli seconds. Are you operating the two MOSFETs independently - what I mean to say is that if you switched them both in strict time sequence, does the problem also "go-way"?