CAS is a single account statement that records the transactions and holdings of an investor's demat accounts with NSDL and CDSL, as well as his holdings in mutual fund units. The monthly statement enables investors to have a consolidated view of their portfolio across asset classes.If an investor has demat accounts across the two depositories, the depository that has the demat account which was opened earlier is the default depository for consolidating details of accounts across depositories and mutual fund investments and dispatching the CAS to the investor.

Changing default depository

If an investor wishes to change the default depository from where he receives CAS, he must indicate his preference by submitting a letter signed by the first holder to any depository participant. He can also choose to send an email to the depository from his registered email ID.

Change of contact details

For a change in the investor's contact details, he is required to submit a KYC updation form to the depository participant, along with ID and address proof. Once the request is processed, CAS will be sent as per the new contact details.

Discrepancy in CAS

If the investor finds any discrepancy in the CAS, he can get the necessary clarification by calling the toll-free customer care number of the respective depository.Alternatively, he can lodge a complaint with the concerned depository.

Tracking CAS

The investor can retrieve a previous month's CAS by visiting the depository website and downloading the same, after entering details such as CAS ID, PAN and email ID.

It is important to keep the CAS ID number noted down for future reference.

CAS is sent to the investor only if any transactions have been carried out in the previous month.

If there are no transactions during a half-year period, CAS is sent on a half yearly basis, with holdings as of March September, as the case may be.