TNMAWS , TNPSC CTSE (Non Interview Post) -AD, TNEB 

 used to refer standard Author books as my primary study materials but still I couldn't make it in my first two attempts in TNPSC CESE. Then, I realized I need to practice more to manage time in solving problems. So, I brought Test series from Sparks academy and this improved my confidence and accuracy in TNMAWS and TNPSC CTSE exams. Also, Sparks academy's mock interview gave me clear idea about how to approach interview and helped me to perform better in TNMAWS interview.