Hello student. symbiosis in noida is a good institute and is a bit demanding too. 668 waiting list number is a bit higher one. So the chances are a bit lesser for you to get in.
Donot lose hope, try attending the counselling as the seats filling varies every year since it depends on many factors like number of student writing exam, attending counselling etc.
I suggest you to apply for other colleges too to be on safer side
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