What are the best colleges to pursue BA Economics (Hons.) outside Delhi?

Hello, I'm from Tamil Nadu and I'm concerned about the health effects of Delhi's air though not completely closed to DU. I want to know if there are better institutions outside Delhi. And Kolkata (my parents think it's very unsafe) which eliminates the best colleges in India. I want to do a rigorous course which includes quant based Economics.

Myquals cbse 10th 97% currently in 12th (commerce+core math)

What do you think about Symbiosis, Shiv Nadar Chennai, PSG Coimbatore (my teachers insist on this), Gokhale Institute, Ashoka...