Thanks for your valuable Information,
Option 1 may be over come where we manually put do_follow but always means its really heavy work. any how thanks for the suggestion & I agree with you.
Option 2: the link you given in tutorial is landing 404 page, may be I don't have access to google apps for work. I might have limited access like mail, drive, MailChimp and so..
there is a second options which can be created for free using meta tags. Long back I got some info from googly but It was very hard to understand for me since I'm poor in HTML. My work domain is different and never foot much efforts to learn indent HTML/Java Script.