This website helps you track your progress as you solve coding questions from different sections of the TCS NQT syllabus. Each section contains various problems that you can mark as done as you solve them.
Select a section from the navigation menu, and as you solve questions, check the "Done" box to mark them as completed. You can view the solution to any question by clicking on the provided link.
Happy coding, and keep progressing towards your TCS NQT exam preparation!
Also here is the original takeuforward's sheet for article solutions and other references.