Heading Tag Optimization

It is the on-page SEO and off-page SEO which together decide the ranking in SERPs. Only header tag optimization will not work to rank in top.

For your website to rank higher for the term "SEO site in India," you must use on-page and off-page SEO strategies. Include the "SEO in India" keyword in each webpage heading, as well as add quality to the page content, and test your site's performance (speed) and functionality on a variety of products.

If you want your site to rank higher for keyword "seo site in india", then you need to implement all the on- page and off- page SEO techniques, like try inserting your keyword in every heading of the webpage , also add your keywords in the content of the page appropriately and check the speed and performance of your site on various devices.

Use the same keyword in your meta title and meta description.