No but gk is not included in percentile or composite score right?I read on many different websites that GK is not counted with the other 4 other sections. 

Yes,  gk will not be counted in the percentile calculation. Still you should aim to get better marks in it because that shows how well you are aware about current affairs, etc.

Thanks for the guidance sir, but i just wanna ask one last thing sir that what if my raw score in MAT Exam is 80 or you can say below 80 So in that case what will be my final composite score. The college that i wanna join is not asking for percentile actually they're asking for 450+ composite score and that's why i wanted to confirm whether if it possible to get 450+ composite score with 80 raw marks in MAT.Thank you