Do I have to wear formal clothes during campus recruitment interviews?

Of course it is good to dress formally, but there is no need to go to the trouble of wearing professional attire. As long as there are no special requirements, just dress formally. Dress generously, cleanly and neatly, and don't be too childish. Try your best. Avoid sportswear and clothes that are too casual. Girls should not wear too much jewelry and try not to put on too much makeup.