After completing B.Tech, you have a number of options to further your education depending on your interests and career aspirations. One of the most common paths is a Master's degree such as M.Tech (Master of Technology), which specializes in a specific engineering field. M.Tech enhances your technical knowledge and opens up higher positions in the industry or research.
For someone interested in managing, there's the MBA Master of Business Administration, which allows you to gain leadership skills over a broad set of sectors, and you also have the specialization certifications, such as diplomas or courses related to new or emerging fields that are considered specialized, such as data science or artificial intelligence.
Another option would be research-based opportunities for those considering an academic career and a PhD. This would eventually lead to contributing to new technological advancement and working in academic institutions or a research organization. Further studies always broaden the career options for anyone, making education more aligned with their long-term professional goals.