Innovative tactics like utilizing interactive apps, visual aids, and group discussions can help candidates study effectively for the environment section. Using flashcards and quizzes can reinforce memory and comprehension of key concepts and biodiversity topics. Engaging with multimedia resources, such as documentaries or online courses, can present information in an engaging manner. Candidates can also participate in environmental initiatives or volunteering to gain practical experience, making the subject matter more relatable. These methods promote a comprehensive understanding of environmental issues tested in the UPSC exam.