Can anybody please help

You can use the OWC (Office Web Components) but the clients must have Office
!!
Otherwise, you can try TeeChart Axialis but it is not free (but easy to
use). If you want to try : www.teemach.com
I used it (with the evaluation version and it is simple to use with a good
help and many examples)

Here are some free alternatives:

See the following URLs on creating graphics in ASP:
http://www.asptracker.com/demo/chart.asp
http://www.15seconds.com/Issue/981025.htm
http://www.asptoday.com/articles/19991129.htm
http://www.mcwtech.com/te98files.htm
at the above URL, you can download the following code and explanation:
"5-309 Publishing and Analyzing Intranet Data Using Microsoft Office" by
Paul Litwin

http://www.haneng.com/lessons/18.asp
http://homepages.go.com/~jk61/ActiveGD/ActiveGD.htm#getagd4.

Also, you can use PerlScript with ASP, which will give you access to the
Perl CPAN libraries which are used for most of the financial graphics on
the internet. Perl for Windows is available at
http://www.ActiveState.com/
and the CPAN libraries can be searched at
http://search.cpan.org/
In this case, select the hyperlink for "graphics", which is
http://search.cpan.org/Catalog/Graphics/