1. UPSC: Union Public Service Commission
2. IAS: Indian Administrative Service
3. IPS: Indian Police Service
4. IFS: Indian Foreign Service
5. IRS: Indian Revenue Service
6. IES: Indian Engineering Services
7. IFS: Indian Forest Service
8. CSE: Civil Services Examination
9. CSAT: Civil Services Aptitude Test
10. TSPSC: Telangana State Public Service Commission
11. Group 1: Executive Posts in TSPSC
12. Group 2: Non-Executive Posts in TSPSC
13. Group 3: Panchayat Secretary in TSPSC
14. Group 4: Junior Assistant and Typist in TSPSC
15. TGT: Trained Graduate Teacher
16. PGT: Post Graduate Teacher
17. AEE: Assistant Executive Engineer
18. VRO: Village Revenue Officer
19. VRA: Village Revenue Assistant
20. FBO: Forest Beat Officer

These are some of the important full forms that are commonly used in relation to UPSC, IAS, and TSPSC exams.