Hi Naveen!
You just have to go at it a little backwards.
Invoke the JAR utility in the directory you want to extract the files in, rather that the location of the JAR file itself.
For instance, if you want to extract into the some/other/dir directory, change to that directory first: (cd some/other dir || dir some\other\dir ), and then call jar -xvf ../../../myjarfile.jar
Hope that helps!
Darrin