Hi Shashi!

> dd if=<file> bs=32k skip=1 of=a
> and then tar xvf a it works.
> I tried to combine the two commands
> dd if<file> bs=32k skip=1 | tar xvf

Try this...

dd if=<file> bs=32k skip=1 | tar xvf -

Good luck!
Glenn
-- 
Glenn E. Sieb
System Administrator
Lumeta Corporation
+1 732 357-3514 (V)
+1 732 564-0731 (Fax)