Hello aspirant,

Well actually there is no specific cutoff (percentile) needed to get into PSG College of Technology. Since this college takes admission through JEE Main score, you can try to score good in Mains so that you can apply for admission into PSG college. Although you have to go trough TNEA counselling process inorder to get a set in PSG College of Technology. However there is cutoff for JEE Main category wise. Below I have lsited the category wise cutoff (percentile) - 

• CRL : 89.75
• GEN-EWS : 78.21
• OBC-NCL : 74.31
• SC : 54.01
• ST : 44.33 
• PwD : 0.11

You can also go through this link and checkout the details about PSG College of Technology, coimbatore : https://www.careers360.com/colleges/psg-college-of-technology-coimbatore

Also, visit this link to check the details regarding TNEA counselling : https://engineering.careers360.com/articles/tnea

Good Luck !!!!