All the colleges you mentioned in your query are top most colleges of Tamil Nadu. All these colleges have meritorious and highly experienced faculties along with world class infrastructure.

In terms of placements, PSG and Vellore Institute of technology top the list. PSG has NIRF ranking of 44 while VIT has 18th NIRF Rank. The list is then followed by Thiagarajar College of Engineering is located in Madurai which has the NIRF rank 56. After that, there would be RV College of Engineering and Thapar Institute of Engineering and Technology. Placement records are great here. One student of Thapar was placed in Microsoft with 21 lpa. 4 students were placed in Amazon with CTC of 26 lpa. Then comes CEG, Guindy. The placements of CSE & IT Departments are on par with IITs and NITs.