Not all that long ago the only way in which people could end up maximizing their reach on the internet was to stuff keywords into their content. This lead to most of the content on the internet being full of useless keywords and not really accurate to the search queries that people were trying to make at any given point in time. As a result of the fact that this is the case, search engines changed how they looked at SEO and started to prioritize different things instead of keywords.
Keywords still matter of course, but what matters even more than using them is creating content that is genuinely engaging in every way, shape or form. This is easier said than done of course, but all of the SEO Kolkata in the world would not help you get a good search engine ranking if your content is not of the highest quality. Try to hire writers that know what they are talking about and that can deliver you content that is very accurate and realistic and at the same time is pleasant to read since this is what will lead to web crawlers giving you a legitimately good ranking in some way.
Remember, the way that SEO currently works is always going to prioritize organic content over artificial content. You need to modify your own thinking about how this process works as well, otherwise you will never be able to get the kind of website ranking that would truly enable your company to get the customers it needs to ensure that it can stay viable by earning a decent amount of profit over a reasonable period of time as well as in the long run.