[Tugindia] list of symbols extraction

[Ashis Kumar Mal]

Sirs,
I wished to have list of symbols extracted from my document.

I downloaded losymbol.sty but wondering how to use it. I tried to use 

\listofsymbols
 
command in my main document but of no help.

Please suggest me how to extarct list of symbols easily from a thesis 
document.

Thanks to all the listmembers for their excellent advices.

Best.
_Ashis
Kharagpur