Free Websites For Civil Service Exam Preparation Online

UPSC Official >Facebook Link

UPSC Notification >Facebook Link

Some Exclusively UPSC focused Websites

1. gsstudy.com
2. gktoday.in
3. Mrunal.org
4. unacademy.com
5. ClearIAS.com
6. byjus.com
7. insightsonindia.com
8. jagranjosh.com
9. civilsdaily.com
10. visionias.in
11. pmfias.com

Important Government Websites With Facebook Link

1. Indian Parliament >Facebook Link
2. Indian Constitution >Facebook Link
3. Constitution India Code  >Facebook Link
4. NCERT Windows>Facebook Link
5. NCERT Android >Facebook Link
6. Ministry of Health and Family Welfare >Facebook Link
7. Major Govt Schemes >Facebook Link
8. MHRD >Facebook Link
9. Ministry of Rural Development >Facebook Link
10. Ministry of Social Justice and Empowerment >Facebook Link
11. Department of Administrative Reforms >Facebook Link
12. Ministry of Women and Child Development >Facebook Link
13. Centre for Cultural Resources and Training >Facebook Link
14. Department of Industrial Policy & Promotion >Facebook Link
15. MEA (External Affairs) >Facebook Link
16. Budget and Economic Survey >Facebook Link
17. NITI Aayog >Facebook Link
18. Agriculture Cooperation  >Facebook Link
19. Department of Food & Public Distribution >Facebook Link
20. Ministry of Food Processing Industries >Facebook Link
21. Department of Land Resources >Facebook Link
22. ISRO >Facebook Link
23. Ministry Of Environment  >Facebook Link
24. Pollution Control Board >Facebook Link
25. National Disaster Management Authority >Facebook Link
26. Ministry of Home Affairs >Facebook Link
27. RTI >Facebook Link
28. Department of Administrative Reforms  >Facebook Link
29. Administrative Reforms Commission  >Facebook Link
30. Yojana  >Facebook LinkFacebook Link
31. National Institute of Open Schooling >Facebook Link
32. Ignou EGyanKosh >Facebook Link
33. NPTEL >Facebook Link
34. UGC CEC >Facebook Link
35. Press Information Bureau  >Facebook Link

Free Education Platforms and YouTube

1. Khan Academy
2. School Yourself
3. CK12 
4. CK12 BrainGenie
5. CK12 FlexiMath
6. SoftSchools
7. World Geography 
8. CrashCourse 
9. Science Show
10. Vsauce
11. Minutephysics
12. Veritasium
13. AsapSCIENCE
14. Periodic Videos

MOOC Providers

Find UPSC syllabus covering topics from the list of courses .Expose yourself to some international high quality content .

1. MRUniversity 
2. Coursera
3. Edx
4. Future Learn
5. World Science U
6. Open 2 Study

Popular Sources 

1. PTI
2. Hindu