Hi Debraj Chatterjee,
Try crash course learning path.
https://academy.mendix.com/link/paths/82/Crash-Course
else you can filter based on the intermediate level and start practicing. You will learn better.
Agree with Uday, but want to point out there is also an excellent course on Mendix in Tarik Subasi's course for a Mendix 9.6 Web application on Udemy. It's a paid-for course, but you learn a lot. Worth the investment.