I am working on a website that is similar to match, eharmony, and dream marriage, and I would like to know if someone else has some great and unique ideas for SEO campaign.
You should link your website with your niche sites like Shaadi.com , matrimony.com etc to gear up your ranking in google search.
You asked this same question in another thread a couple of weeks ago, and were told that your question was too vague.
People who have “great and unique ideas for SEO campaign” are going to use them themselves, not give them away free on a forum. The only answers you’ll get to a question such as yours are the kind of generic answers you could find anywhere with a quick search.