Complete SEO Boost for Blog

I run a content-rich blogging site that also hosts a few handy online tools, yet it’s barely visible on Google. I have never carried out any search-engine optimisation, so I’m starting from a clean slate and want to get it right the first time... (Budget: ₹2000 - ₹4000 INR, Jobs: Content Marketing, Content Strategy, Internet Marketing, Keyword Research, Link Building, Marketing, SEO, Website Audit)