Though the question wasnt intended to me, but thought to answer it. Hope Challa wont mind it... :P Well, though there is no prescribed dress code for any time, but its better if u get dressed up in suits (which r considered to be completely formal). but, if the weather of ur city does not permit it, then u can always go ahead with light colored plain shirt, with dark colored trousers (preferably black or navy blue) with a tie.
