For all smallcases (created/customised included) a one-time flat fee of ₹ 100 + GST when you invest in a smallcase with investments >= Rs 4000 and no fees is charged for investments < Rs 4000. No charges for any other order placed in that smallcase.
Other statutory charges such as STT, Transaction charges, Demat charges & taxes are applied as usual from your broker. Read more here
Your fees are deducted from your ledger at the end of the day.