Hello Dhruvi..

Thanks for contacting Careers360..

 M S University takes admission through GUJCET but in 2018 there will be only one entrance exam to take admission in all state and private level colleges.
In order to take admission in these colleges your 12th score should be more than 45% but you should try to get more than 75%  if you want to take admission in NITs. 
To check the cut off of these colleges you can refer below link
MSU
MSU Cutoff

All the best:)