I have got 95.33% in 12th. Can I get a merit seat for B.Com?

You can check the college portal for the previous years' papers.

https://www.shiksha.com/college/psg-college-of-arts-and-science-psgcas-coimbatore-1855

Yes, PSG of arts and science (PSGCAS)in coimbatore offers comprehensive commerce programms designed to prepare students for competitive professional cerification like ACCA

The M.Sc. Biochemistry program is offered at PSG College of Arts and Science (PSGCAS) rather than the engineering focused PSGCT. The official college timing for the M.Sc. Biochemistry program is 9:00 AM to 3:00 PM. 

50% of the students get placed through campus recruitment drive. Faculty members

PSGCAS can remain strong, featuring a strong median package of around INR 3.40 LPA to INR 3.50 LPA and top recruiters are Wipro, Infosys, TCS, and Amazon.

Candidates have to keep the following documents ready during the PSGCAS application process:

• Class 10 mark sheet and passing certificate
• Class 12 mark sheet and passing certificate
• Bachelor's degree (if applicable)
• Passport-size photo
• Aadhar Card
• Category Certificate (if applicable)