Immobilisation

There are two different ways to move securities without physical paper changing hands. India chose one of them. It is useful to know the one it rejected too.

Under immobilisation, the physical certificate keeps existing. It sits in a licensed central depository's vault. Transfers between investors happen only by book entry on the depository's own records, but the paper itself is never destroyed.

India did not build its system this way. It chose dematerialisation instead, where the physical certificate is destroyed once converted, and only an electronic record of the holding survives.

The Bank for International Settlements, in its own 2-part definition, describes a depository as a facility for holding securities that enables transactions to be processed by book entry, adding that physical securities may be immobilised by the depository, or securities may be dematerialised, so that they exist only as electronic records. These are presented as two alternative models, not two stages of the same process.

Under immobilisation, physical securities are held in a licensed central depository for the account of the beneficial owners, and such immobilised securities can then be transferred by electronic or book entries on the depository's records — the paper certificate persists as the underlying legal instrument throughout.

India has adopted the dematerialisation route, as against immobilisation, which the workbook notes is practised in some foreign countries. Under dematerialisation, the physical certificate is destroyed at the point of conversion, and title exists thereafter only as a number of securities recorded in the depository system — there is no certificate anywhere left to immobilise.

Suppose a country operating an immobilisation model holds 10,000 physical certificates for a listed company inside a single central vault. When Investor A sells 100 shares to Investor B, the vault's book entry is updated — Investor A's holding falls by 100, Investor B's rises by 100 — but the underlying 10,000 paper certificates never move and are never destroyed; they remain in the vault as the legal backing for every investor's electronic balance.

Under India's dematerialisation model, by contrast, when Mr Sharma dematerialises 100 shares worth Rs 48,000 at Rs 480 each, his physical certificate is defaced, mutilated by punching two holes, and forwarded to the Issuer's R&T Agent for cancellation. Nothing remains in any vault. His 100 shares exist purely as an entry of "100" in his demat account — there is no certificate anywhere in the system corresponding to those shares any longer.

Chapter 2, section 2.2, quotes the BIS definition of a depository and immediately contrasts it with the model India actually adopted, noting the choice in a single explanatory footnote. This distinction is a favourite one-line recall question precisely because it is easy to state and easy to mix up.

Expect a question asking which model India follows — dematerialisation, not immobilisation — and what the key operational difference between the two is: whether the physical certificate survives (immobilisation) or is destroyed (dematerialisation).

• India follows dematerialisation, not immobilisation. This single fact is tested directly and often.
• Under immobilisation the physical certificate survives, in a vault; under dematerialisation it is destroyed. The confusion between the two usually comes from both processes producing the same investor-facing result — a book-entry balance.
• Do not treat immobilisation as a step within India's dematerialisation process — the workbook presents them as two separate, alternative models, of which India chose only one.