Jayakrishna sanapa creator text New delhi Wiley india pvt.Ltd. 2024 Sec. edi. monographic 443P 27cm(PBK) Jayakrishna sanapa For UPSC civil service and state services examinations 2025 910 9789357464246 B-777261-288 ENG-146769 BACEN25 International book center DBAD DPL 20250904145431.0