WordPress suits a company site, blog or content site that changes often, because your staff can edit it without calling a developer, it works well with SEO, and a large community keeps it supported. It is a flexible CMS, from small company sites up to enterprise sites. Custom development, or bespoke WordPress solutions, means the site is built around your content and your brand, with only the plugins it needs.
It suits you less if selling products is the main job, where Shopify may be simpler, or if the site is really a software product. We will say so if that is the case.
For a WordPress site for a business in India, see PromotEdge's WordPress development services.