Hello Prasanth,
Sleep is essential for body and mind. I understand your distress. Here are links to few blog posts I wrote about sleep and how to improve it. It could help you.
http://www.thevividmind.org/blog/5-reasons-not-sleep-well/
http://www.thevividmind.org/blog/5-steps-better-sleep/
If you find sleep evasive, even after these measures please see a psychiatrist near you soon.
Next Steps
Follow sleep hygeine.
Health Tips
If sleep hygeine does not help, see a psychiatrist soon.