Pledge charges are fees levied by a Depository Participant (DP) and the depository (NSDL or CDSL) when an investor pledges securities held in their Demat account as collateral — typically to obtain a margin facility from their stockbroker for trading in the derivatives segment. The pledge creation process involves the investor instructing their DP to mark specified securities as pledged in favour of the broker, who then receives margin credit against the pledged securities' value (at a haircut determined by the exchange). Both pledge creation and pledge closure (when the margin is released and the pledge is removed) attract per-transaction charges — typically ₹20 to ₹50 per ISIN per pledge or unpledge instruction, subject to applicable NSDL or CDSL rates. After SEBI's 2020 margin framework reforms, pledging of securities (rather than physically transferring them to the broker's account) became the mandatory mechanism for providing collateral margin — significantly improving investor protection by ensuring securities remain in the client's own Demat account rather than being transferred to the broker. Investors using pledged securities as margin should track pledge charges as part of their overall trading cost structure, particularly when pledging and unpledging frequently.