Animisha
Hey Animisha!
Have you already tried to play on the first and second beat fast, then pauze. The next two beats fast, pauze, next two beats fast, pauze. And so on? And then again from the start, first beat, pauze, second and third beat fast, pauze, next two beats fast, pauze (now you are playing and connecting notes on other beats fast after each other). And then you could try to play 3 or 4 beats fast, pauze, and so on.
I do this when I can't improve the speed. Another thing I do (when only a few sections are problematic) is playing it faster than it's supposed to be played and using the technique I described only on the parts that I can't play fast, and when it gets easier I go back to the normal speed. Then it suddenly feels easy.