Hi Hemant,
You can find all the documentation here:
http://infocenter.sybase.com/help/index.jsp
More help on installing and more in depth information is to be found on:
and
Sybase Tips, Tricks, Tools & Documentation by Rob Verschoor
There are also two good books i can recommend you by Rob Verschoor:
Book: The Complete Sybase ASE Quick Reference Guide
Book: "Tips, Tricks & Recipes for Sybase ASE"
One more tip: Spend as much time you can on installing the product and setting it up (configuring)
regards,
Harry