Hii !!
The chances of getting admission in your desired college is quite high because you have scored  very excellent marks. Congratulations. However for your information the minimum percentile required is 40. According to previous year cut off it is 96 to 118. I have shared a link below which gives ypu even more clear information.
https://www.edufever.com/mata-gujri-memorial-medical-college-kishanganj/amp/
Don't lose hope !!
Best of Luck !!