Which Is Effective Seo Method To Improve Website Ranking?

Hi everyone !! please someone suggest me some perfect and effective SEO method to boost up our website ranking . It is related to web development services. We did SEO at regular basis but can;t get google position from the keyword- Website Designing Company in Delhi India.

There are plenty of these methods and strategies.
Most of them contains 2+1 steps:
1. On-site opt.
2. Off-site opt (and I think that you're asking about that path)

Take the easiest way:
- find 2-3 major competitors;
- grab their links (use ahrefs);
- detect which links are paid, free, listings, free articles, etc.;
- make the similar link profile.

P.S. Ahrefs costs $100 per month - it is better to ask someone who has access to bring to you the results for just $5-10
3. Analyze and improving the user's experience