Why haven't I received delivery of the G-secs I purchased in my demat account?

Interdepository transfer (NSDL to CDSL and vice versa) of Government Securities (G-Sec) is allowed only in multiples of 100. This is as per RBI's guidelines. In the event that we receive payout of your purchased units of G-Sec from the Clearing Corporation to our NSDL account, there may be a delay in crediting them to the CDSL account.