Anna University

Yes, 52 seats of Anna University is reserved for Other state students. You will easily get College of Engineering, Guindy if your cutoff score is 185.
Cut-off score =maths+chem/2 +phy/2.

It depends on your course option as well as that year's aggregate performance of overall 12th standard students. Mechanical/ECE are the high players with 199+cut-off. It also depends on your community. In OC perspective, 199+ should be good. The same comes with BC too with a 0.5 difference. The previous year cut-off data would be available online.
All the very best.

Anna is the best of the three. Kindly refer its website for more information.

Yes, there will be opportunity unless you have to prove your talent in placements.

Yes, both are different and the fees, course etc. everything varies. In UT, you can do 2nd year in USA or else, you can stay back here and complete the course. The fees structure is very high for UT when compared to MBA in PSGIM.

No, you will not get admission with this score in an architect college.A score of 90+ is considered in NATA to get admission in B.Arch in various governmet colleges.

Hi,
Both are good for pursuing MBA, both universities have good placement record. So, choose the university depending upon your specialization.

Yes, it is the best college. PSG-Coimbatore can also be a good choice. Other than that, Panimalar Engineering College, Thiagarajar College of Engineering, SRM University, SASTRA University and Karunya University are some of other famous universities in Tamil Nadu.