How much time should I spend learning blockchain projects during an MCA?

A strong MCA project should solve a clear problem and demonstrate real technical work. A student can strengthen it with proper documentation, testing, source control and a working demonstration. When preparing for an IT role, be ready to explain how blockchain projects works and where you would use it in a real application. This point is specifically relevant to the blockchain projects aspect of MCA study. For this specific question about blockchain projects, the practical takeaway is to relate the concept to your own MCA learning goal.