Domain Authority Boost to 60+

I need my site’s Domain Authority lifted to 60 or higher as quickly as possible. I’m focusing on two levers: high-quality backlink building and sharp technical SEO fixes. Backlinks must come primarily from guest posts placed on reputable, niche-relevant sites with strong existing DA... (Budget: ₹1500 - ₹12500 INR, Jobs: Content Marketing, Digital Marketing, Internet Marketing, Link Building, Marketing, Moz, SEO, Website Optimization)