Anshika

There are some algo like  Penguin, Panda, Hummingbird and other Google Algorithms that can  really make impact on Rankings of the site.

Link Building Strategy  should be :

1) All the links should be submitted Manually.
2) All the back-links should  be Unique and from Page Rank 2, 3,4, 5, 6+ top domains.
3) All the links should be One way, Permanent, Approved,Do-follow and of high quality .
4) All the links should  be build Naturally & by implementing White Hat Link building only.

Also one important Factor is site should be Fully mobile optimized.

 On-Site Activities  should include :

1.Optimization of Title Tags
2.Optimization of Meta Description Tags
3.Optimization of Meta Keywords Tags
4.Header Tags Optimization
5.URL Optimization
6.Optimization of italics and bold tags
7.Optimizing HTML Code etc

Off-Page SEO (Back-linking) should include

1- Blog creation /setup
2- Blog optimization
3. Search Engine Submission
4. Directory Submission
5. Article Submission etc.