Hi @Saurabh88 the post has full details, stock broking industry was discussing with exchanges / regulators on the penalty for which reversal was pending, post that we have reversed it. Full post: Important Update: Reversal of Penalty on Shortfall of Upfront Margin
DPC is Interest that is charged for usage of broker funds. Every stock broker that allows usage of funds charges this if not under head of DPC, then some other head probably. To avoid these, always trade with will own / full margins. Additionally, all these margins are reported to exchanges on a daily basis.
Additionally, we have waived off all interest charges on delivery based transactions: Pricing Update: Dhan is waiving off DPC Interest on Delivery-based Transactions | w.e.f 1st Oct'22