Hello, Can any one plz help if to know that - If i want to cheek my sites' ranking in google with particular keyword which tool i should use???
You don't need any softwares if you only want to check your rankings on just one particular keyword. lol. 1. Go to Google 2. Type in your keyword and hit search 3. Look at the SERP and find your ranking position. If your ranking has gone down that it previously was then your rankings obviously dropped to a certain extent. If your rankings goes high then the better.
Thanks for you answer grimn !! But what if my rankings is not among top 100..still i will check it manually??
Well it depends on you on how you want to monitor your rankings however I wouldn't really go that far. Being not in the top 100 means that you've still got a long way to go so focus more on the SEO needed for your website rather than being uber conscious on your rankings.
Use Google webmaster tool, it will let you know your top keywords and where it rank on SERPS (you can get only idea from it will not 100% accurate)
There is no need to use 3rd party tools in order to check your rankings. Just write your keyword in Google and check your position. Make sure you're not logged in some Google services like Gmail, etc. If you're not on the first 5 pages you're doing something wrong