PGC College is quite good for pursuing a arts/science degree in Coimbatore. The bachelor’s program in Computer Science offered by the institute is quite good. Reputed companies like Google visit the campus for placements. In the recent placement drive, the average CTC offered at the institute was 3 LPA. However, they only teach fundamentals. So, if you want to learn in-depth, you will have to self-study. You can learn through sites like Coursera or MOOCs. 

PGC is a great option if you want a career in the IT industry. Compared to colleges of Tamil Nadu like Loyola/Prasidancy/MCC, it is better.