It helps you assess your preparation and identify your strengths and weaknesses. By taking a mock test, you can get a sense of how well you know the Answer and where you need to focus your studies. The timely evaluation and feedback from Rau's IAS will help you identify your areas of improvement and track your progress over time.

The best time to join a test series for UPSC Mains would be approximately 9-10 months before the scheduled date of the examination.

Test Series are valid till the respective UPSC exams. So, UPSC Mains Test Series will be valid till UPSC Mains exam. Mains tests can be attempted with flexibility till Mains.

Rau’s IAS mains test series is the best bet for the civil services aspirants as it is designed to help students, revise, knowledge enhancement, gap identification. The focus is to help students to score 200 plus marks in the Mains exam with ease. Rau’s IAS gives the list of reference books that one must cover for comprehensive coverage of syllabus of Mains. You can find this list as part of the Rau’s IAS MTS Brochure.
Before the commencement of UPSC Interviews, all the UPSC board members are briefed by Chairman and Members of the UPSC on the purpose and manner of conducting the UPSC Interviews. The Boards are asked to follow some common standards towards maintaining uniformity in assessment.

Test Series is a bigger product which also has Mock tests. Just to give an example from Rau’s IAS Test Series, there are thematic test and Mock Tests (also known as FLTs). These mock tests are actually the simulation of the Mains GS Papers.