I second the suggestion. Get GRE out of the way, that way you can focus on your applications while you're working.
@ zlich - By 'electronics courses', I believe she means 'electronics programs'. In most Indian universities, the terminology goes as -- program -> course, course -> subject/paper
@pavithra - I would suggest you figure out your aims for graduate study, even if you're looking at an MS. 'Electronics' is in itself a very broad field, and you will find certain programs more renowned in certain aspects than the others.