Will there be minor online courses for cyber security like there is for in data management (B Sc)?

IITM offers several semester courses in the broad area of cyber security as well as a 14-week online course called Certified Cyber Warrior that you can learn more about at https://skillsacademy.iitm.ac.in/program-inner.php?courseID=11&cart=.

In addition to this, there are NPTEL courses about cyber security offered by institutes like CEC and IGNOU that you can access free of cost at nptel.ac.in or swayam.gov.in.