Internet is increasingly becoming an important medium for dissemination of information and conducting business. Enabling transactions through Internet thus becomes essential as a means to provide better flexibility and convenience to clients and further increasing efficiency of settlement of trades in the capital market. Safety of transactions is however, a very crucial issue in Internet based solutions. This assumes significance in case of depository transactions since it involves movement of high-value financial assets across accounts. Further, depository transactions are also time critical. The lapse or failure to deliver the securities in time for pay-in to the stock exchanges may lead to financial liability. Hence, an Internet application for depository transactions necessarily demands an elaborate and robust infrastructure that ensures efficient execution, secured processing and guaranteed delivery of transactions. NSDL offers three e-services based products viz., SPEED-e, STeADY and IDeAS.