hello every one i am engaged with web design and development and quite some time i am experiencing that when ever i go to validate my site on w3c i see a list of errors and it takes a lot of days to rectify them. What should i do ? Is there any tool? Please help

Is there a tool to fix them?

There most certainly is!

It's exactly the same one you are using to create the pages in the first place.

Doesn't validator display tips how to fix these errors?

I was never there, maybe you can tell me?

Start with the first error and fix it. Many times, fixing the first error will "fix" several other errors too. If you know something about code, it shouldn't be that hard since the error should tell you exactly what the problem is. But if you're using a WYSIWYG editor and don't know anything about code, fixing coding errors may be hard to do.

Use this it will show you errors and fix it one by one. Here is a validator : http://validator.w3.org/