How much "AFFILIATION" of a school neccessary ?

I am going to take admission in a non- affiliated school under CBSE curriculum since I have no other way. I just want to know will this non-affiliation be an obstacle for my future studies or higher education ? The former students of the school had given their board exams through another school. This system of the school is going for 9 years. ( Till now there has been no problems, not even a single complain about the affiliation from any student. ) So,please tell me will this non-affiliation cause any poblem in my future studies. Please kindly waste some of your time by giving your valuable answers. IT'S REALLY URGENT. THANK YOU ALL.............