30 Years UPSC Prelims Civil Services Exam 2025 Solved Papers 1 & 2 General Studies & Aptitude (CSAT) MCQs + Essays Demystified For UPSC CSE & Competitive Exams | Set Of 2 Books(Paperback, Team Prabhat, Nishant Jain, Abhishek Saraf, Snehil Tripathi)