i want to do some SEO work for my site.Can anyone tell me of any free tool which can give me suggestion for onsite optimization. Thanks in advance
Don't use a tool! Best advice you will get! read up on some of the guides here and work it through yourself - you will get much better results!
I will be doing the things myself but i need some suggestions to start.So that i can make my mind about work to be done.
Try websitegrader.com. It's not the greatest tool in the world but it will give you a general idea of what needs to be fixed and where you should start. For more in depth analysis of your site, I'd suggest you read about the basic on-page stuff on authority sites and then try to map those things on to your site. Good luck