I also recommend creating a cell called mutable debug = null; then from anywhere you can write mutable debug = xxx and it will populate that cell.

Ahh thats nice, Thanks for your comment. But, I guess using this method, we cannot print in the format and style we want (like we can, using html and md elements). But, it is useful for storing any values in a cell variable and display. So, I have added in the last part of this notebook. Thanks for your suggestion! :)