Yogesh,

You might want take a look at the Pragmatic Marketing site,
specifically, this page, for templates and such.
<http://www.productmarketing.com/productmarketing/files/epm/>

I concur with Raj on his points.

One of the PM's challenges is distilling the need/problems needing
solutions from the want/solutions perceived by the customer/solutions
perceived by the PM. Focus on the problem and take that back to the
team...

--
Lorin Rivers
Mosasaur: Killer Technical Marketing <http://www.mosasaur.com>
<mailto:lrivers@...>
512/203.3198 (m)