These topics have been collected form various sources, and are best of the best. Here we go:

1. Earthquake vibration control using modified frame-shear wall 

2. Advanced Earthquake Resistant Techniques 

3. Smart materials 

4. Causes Prevention And Repair of Cracks In Building 

5. Rehabilitation techniques. 

6. Advanced Pavement Design 

7. sewage treatment plant 

8. Air pollution & its control 

9. stability of high rise buildings.

10. Computer Application In Civil Engineering-ANN 

11. Watershed management 

12. Water resources engineering

13. Corrosion Mechanism, Prevention & Repair Measures of RCC Structure

14. Soil Liquefaction 

15. Analysis for seismic retrofitting of buildings 

16. Ready mix concrete plants 

17. Advance Technology in Surveying 

18. Arsenic Removal From Ground Water By Coagulation Process 

19. Concrete Cube Testing - A Neural Network Approach, Using MATLAB 6.0

20. Bandra-Worli Sea Link(you can do a csae study ) 

21. Collapse of World Trade Center

22. Cellular Lightweight Concrete 

23. Bridge Bearings & Stability 

24. Development Of Remote Monitoring System For Civil Engineering

25. Advance construction techniques 

26. The rain roof water-harvesting system

27. Advanced pavement design

28. Mineral admixtures for high performance concrete

29. Construction safety management

30. Seismic isolation devices

31. Energy dissipation devices for seismic design.

32. Use of polymer composites in bridge rehabilitation

33. Gis, gps and its applications

34. Pile foundation

35. Thermally comfortable passive house for tropical uplands

36. Formwork types & design

37. Value engineering

38. Rectification of building tilt

39. Space hotel

40. Green buildings 

41. Marine pollution 

42. Intelligent transport system 

43. Zero energy buildings.

44. Interlinking of rivers

45. Improvement of bearing capacity of sandy soil by grouting

46. Passive solar energy buildings

47. Flexible pavement

48. Glass fiber reinforced concrete

49. Geosynthetics

50. Failure of foundation due to earthquake

51. Silica fume concrete

52. Reservoir induced seismcity 

53. Retrofitting using frp laminates 

54. Non-destructive testing of concrete

55. Mixed traffic control & behavior continuously reinforced concrete pavement 

56. Highway safety 

57. Fly-ash concrete pavement

58. Ground improvement technique

59. Golden quadrilateral of india 

60. Global warming

61. Skyscrapers

62. Eco- friendly housing

63. Ductility requirements of earthquake resistant reinforced concrete building

64. Disaster management in natural calamities

65. Construction challenges for bridges in hilly area 

66. Analysis of pre-tensioned concrete girders construction

67. E � waste disposal

68. Geojute Febrics - As Soil Stabiliser

69. Construction Equipments

70. Offshore structures

We will keep updating this list..Feel free to add in your IDEAS as well..