dear rahul,
do not get depressed... if you had worked hard and still not got desired result... sai baba will bless you in some other thing....it happened with me...in my graduation i used to study very hard...my friends would study only from one book (guide) and i would spend hours in the library seeking knowledge... but i never got good marks like my friends...however, when i did my master's i would study only for few days before exams and lo! i got good marks and then i sat for a national competition and won a very prestigious scholarship followed by lecturer's job and my friends who used to get good marks at that time...for 2-3 years could not even clear the exam (national level test,NET) leave alone getting JRF...
so the bad result does not mean that sai is not working with you....myabe you need to work hard...or maybe you need to bring some change in your life...like getting more organised etc...and sai will always give you the benefits of your hard work sooner or later...think that the hard work you are doing is deposited in a bank account and SAI will give you the benefit where you will need the most....