My Self Devaki Subbalakshmi with an illustrious career spanning over 15 years in the field of training and mentoring aspiring students for a wide array of competitive exams, the author stands as a seasoned and revered expert in the domain of test preparation. Their dedication to empowering students for success in ACT, CAT, GRE, GMAT, SSC, RRB, IBPS, SAT, CSAT, GATE, SI, XAT, CMAT, MAT, SNAP, and GATE examinations has earned them widespread recognition and accolades from both peers and students alike. From the very outset of their journey, the author recognized that the cornerstone of conquering competitive exams lies in mastering the basics. Thus, they have tirelessly advocated for an educational philosophy that centers around a deep understanding of the fundamental concepts across all subjects tested in these examinations. Emphasizing the importance of a strong foundation, they firmly believe that comprehensive knowledge is the key to unlocking the potential of every test-taker. Throughout their career, the author has had the privilege of guiding and shaping the lives of numerous students, helping them soar to new heights of achievement. Many of their mentees have not only cleared these rigorous exams but have also secured top scores, paving the way for illustrious careers in various fields. This remarkable success is a testament to the author's unwavering commitment to nurturing talent and honing the skills of aspiring achievers.