Hi,
Following  is the trace, when i started emacs with --debug-init option.

Debugger entered--Lisp error: (error "Font 
`-sony-fixed-medium-r-normal--13-120-100-100-c-80-iso8859-1' is not 
defined")
  modify-frame-parameters(#<frame emacs@surya.cdotb.ernet.in 0xa393a18> 
((font . "-sony-fixed-medium-r-normal--13-120-100-100-c-80-iso8859-1")))
  
set-default-font("-sony-fixed-medium-r-normal--13-120-100-100-c-80-iso8859-1")

Some where, it is getting this code of setting default font to 
sony-fixed-medium-r-normal--13-120-100-100-c-80-iso8859-1.
Although it is not there in .emacs file.
This error is present in emacs-22.2.1
I thought it may be a problem in emacs22.2.1
Hence
I installed emacs-22.3.1 in a different path than that of emacs-22.2.1.
Then also, same error is observed.

Where is the problem?

Can any body take this .emacs file and start emacs in their system
and find out where is the error?