As the UPSC Prelims results were declared on July 1, the Mains season has begun and so have aspirants’ queries about their Optional subjects. At this important juncture of your examination cycle, UPSC Essentials of The Indian Express has commenced a special series on how to approach optional subjects for UPSC. In this series, subject experts will answer queries on optional subjects that we have received from our readers, aspirants, and subscribers in UPSC LIVE with Manas (IE’s UPSC video series) and on other platforms of Indian Express’ UPSC section. Our first two optionals subject in this series…