Candidates can enhance their understanding of Indian economic policies for UPSC by studying key documents such as the Economic Survey and various government reports. Reading textbooks covering economic theory and its applications to India's context is vital. Following reputable news sources helps grasp current issues and reforms. Participation in online discussions or study groups can also provide diverse perspectives. Lastly, engaging with past UPSC questions related to economic policies aids in applying theoretical knowledge to practical scenarios and enhances analytical skills.