I already had it installed in my browser and I was glad to see the message before posting it in the forum. It is actually a very good tool.
But still we will have to do a proof-reading once again to see, what we have written and corrected is what we actually meant.
1. Search for grammarly.com
2. Click on Add to Chrome button which is present at the bottom of the page.
3. Select the options from the drop down and click on continue
4. Signup with your email
5. After the sign is successful you can select the free plan and enjoy the services.
Attaching the screen shots for your reference. Unfortunately, I just realised that I can attach only one per comment.