Holding(s) in Company

3i Group PLC
15 August 2007

TR-1:               NOTIFICATION OF MAJOR INTERESTS IN SHARES



1. Identity of the issuer or the underlying issuer of existing shares to which
voting rights are attached:



3i Group plc



2. Reason for the notification:



An acquisition or disposal of voting rights



3. Full name of person(s) subject to the notification obligation:



Prudential plc group of companies



4. Full name of shareholder(s) (if different from 3):



Prudential plc



5. Date of the transaction (and date on which the threshold is crossed or
reached if different):



13 August 2007



6. Date on which issuer notified:



15 August 2007



7. Threshold(s) that is/are crossed or reached:



3%



8. Notified details:


A: Voting rights attached to shares
Class/type   Situation previous to the         Resulting situation after the triggering transaction
of shares    triggering transaction
 if possible Number of Shares Number of Voting Number of     Number of voting rights       % of voting rights
using the                     Rights           shares
ISIN CODE
                                               Direct        Direct         Indirect       Direct        Indirect
GB00B1YW4409 Below 3%         Below 3%         11,681,660    11,681,660                    3%






B: Financial Instruments
Resulting situation after the triggering transaction
Type of financial   Expiration date   Exercise/          Number of voting      % of voting rights
instrument                            Conversion  Period rights that may be
                                      / Date             acquired if the
                                                         instrument is
                                                         exercised/ converted.
     N/A            N/A                      N/A         N/A                   N/A


Total (A+B)
Number of voting rights      % of voting rights
         11,681,660                      3%





9. Chain of controlled undertakings through which the voting rights and/or the
financial instruments are effectively held, if applicable:



Prudential plc (parent Company)



Proxy Voting:



10. Name of the proxy holder: N/A

11. Number of voting rights proxy holder will cease to hold: N/A

12. Date on which proxy holder will cease to hold voting rights: N/A



13. Additional information:

14. Contact name:     Sofia Bernsand

15. Contact telephone number:         020 7975 3228




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