Hi saikanth,i give you short n simple tips:-
Follow the series of cambridge esol books specially from 5 to 8 (these books are best for practice).
Reading- Do 1 test daily which include 3 passage.If u have confusion in true/false or not given,then regular practice is the only solution dear.Always read the question first n thn read the passage.If a passage contain 'list of headings' then always do that part first.....Time management in reading section should be like this:-
1st passage-15 min.
2nd passage-20 min.
3rd passage-25 min.
Writing-Use proper structure n impressive vocabulary in task 2.Your introduction n conclusin should be impressive too.In task 2,use cennectives like-followed by,slightly increased,gradually increased or decreased,constitutes n so on..........
Speaking-Practice in front of mirror which will help you to increase your confidence level at interview.Don't hesitate,just speak normally like you are talking with your near n dear one's.Concentrate more on your 2 min. task practice.
Listening-Do 1 test daily.It is the only sdection in ielts test in which u can get 7-8 band easily so,practice hard buddy.Best of luck!!!!