Demat Maintenance Charge (DMC) is a fee charged by the depository participant (DP) to maintain the records of the holdings of the investor in the depository. The maintenance charge is usually levied on a yearly basis and may vary from 1 DP to other. Currently there are 2 Depository Participants in India viz. NSDL and CDSL. The DMC is deducted from the investor’s Demat account every year.