What kind of specializations are available in courses offered at Kolkata Digital Marketing Institute?

You should consider pursuing a short-term online course in Digital Marketing. By short-term, I mean around 6–8 months, which is usually enough to build a strong foundation and practical understanding of the field. Regardless of your current knowledge level, starting from scratch is perfectly fine—especially since most reputed courses guide you step by step through SEO, social media, email marketing, content creation, and campaign management. The reason why it's better to go for a short term course for something like Digital Marketing is because you at the end need to exert yourself  practically rather than only being immersed in the theoretical side of things. 

I would always recommend choosing a course that includes mentorship, hands-on projects, and live campaign experience, as these make it much easier to grasp and apply what you learn in real-world scenarios. From my experience, IIM SKILLS offers one of the most well-structured Digital Marketing courses with placement assistance and live demo classes as well. Definitely worth checking out