Dear Hemanth,
Communication is the most important skill. You can improve your communication skills by reading, learning new words and not only words learn new sentences also.
Read newspapers.
Communicate with your friends and family in english.
Learn new words and new sentences.
Practice more, practice is undeniably the best way to learn and to improve.
Hope this helps you.
Good Luck!
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile