If we get stocks in IPO offerings and trade the same on the day of listing, how are trades being charged at Zerodha; as an intraday or as a delivery trade. Also, are their any hidden charges apart from regular (intraday or delivery) charges for IPO allotted stocks?
There are no additional charges. If you’re selling shares on listing day, these you’ll be selling from your holdings and equity delivery charges will be applicable (plus DP charges, as you’re selling shares from your holdings).
If you’re doing intraday, ie. selling the shares and buying them back again. Then this will be intraday trade and will be charged accordingly. You can check all the charges here.