Hello

If you are asking about the preparation for the GATE Electronics and Communication Engineering, you should prepare a well planned schedule. Know about the detailed pattern of the exam.

You can make a time table as per your daily routine and divide your time section wise.
Make short notes and revise everything which you have studied as only few days are left for the exam.
Don't start any new topic just revise what all you have studied.

Also, solving previous year question papers and mock tests will help in knowing about the types of questions asked in the examination and difficulty level of the exam.

Stay positive and healthy and always keep a positive approach.
Good Luck!