Can I crack GATE without going for coaching???? Will you please give me some good tips to crack the examination???????????

Yes, if you work hard sure you will crack the GATE without joining any coaching center. Self study is a good option only if you are good at studies. you should clear all the basics of your core subjects, concentrate on English and aptitude. Following are some good tips which will help you in cracking the examination:

Study the syllabus pattern in depth
Create a weekly study schedule
Practice questions everyday so you do not get out of touch of the topic
Do not make any guesses in the paper.
Study from books designed for GATE preparation
Practice any applications for a given formulae
Practice your calculation and approximation skills
Solve sample year/previous year papers
Revise any topic you feel is your weak point
Prepare for the General Aptitude section from any GATE book
Always follow standard books for GATE.
Keep preparing your personal notes as you cover topics.
Even you find the paper tough, DO NOT panic. It'll be hard for all Junta
Mentally see yourself succeed
Understand GATE
Make notes
Take mock tests
Check if you are on time