Banking & Capital Markets Systems · Chapter 7 of 13
Custody, depositories, and the settlement fact everyone gets wrong
CDSL and NSDL do not split the market the way people assume, and India has not moved to T+0.
The depositories are not interchangeable
Both are SEBI-regulated and both hold securities in dematerialised form, but they have ended up serving different halves of the market. CDSL leads on account count — roughly 78 to 80% of demat accounts, about 16.5 crore of them. NSDL leads on value held — over 80%, crossing ₹500 lakh crore in September 2024.
In FY25, NSDL's revenue exceeded CDSL's (₹1,420 crore against ₹1,082 crore) while CDSL's profit exceeded NSDL's (₹526 crore against ₹343 crore). CDSL owns the high-volume retail layer; NSDL owns the high-value institutional and foreign-investor layer. Those are genuinely different engineering problems, and it is worth knowing which one you are interviewing at.
Custody
SEBI requires a foreign portfolio investor's Designated Depository Participant and its Custodian to be the same entity — a structural constraint that shapes how the custody business is organised. The custodian population is a mix of global banks (Citi, HSBC, Deutsche, Standard Chartered, BNP Paribas, JPMorgan) and domestic ones (Axis, HDFC, ICICI, Kotak, SBI and SBI-SG).
SEBI's own published custodian list is from 2012 and is stale. Most registrations on it expired in 2012-13, and at least one name — RBS's India custody business — no longer exists. Axis and HDFC confirm active FPI custody today, so the general shape holds; the list does not.
And the platform question is unanswerable from public sources. TCS BaNCS claims 8 of the world's top 10 custodians — a global figure — but no Indian custodian's core platform could be confirmed, and no Broadridge client in India was found at all.
Check yourself