Holding(s) in Company

3i Group PLC
12 September 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:

Legal & General Group Plc (L&G)

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



Legal & General Assurance (Pensions Management) Limited (PMC)



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



3 September 2007



6. Date on which issuer notified:



5 September 2007



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



From 3% - 4% (L&G)





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         Number of Shares Number of Voting Number of      Number of voting rights       % of voting rights
possible                     Rights           shares
using the
ISIN CODE
                                              Direct         Direct         Indirect       Direct        Indirect
 Ord GBP       16,685,941    16,685,941       15,554,776     15,554,776                    4.01
0.738636





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.



Total (A+B)
Number of voting rights      % of voting rights
         15,554,776                     4.01





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


Legal & General Group Plc (Direct and
Indirect) (Group)
Legal & General Investment Management
(Holdings) Limited

(LGIMH) (Direct and Indirect)
Legal & General Investment Management Limited
(Indirect) (LGIM)
  Legal & General Group Plc (Direct) (L&G) (15,554,776 - 4.01% = LGAS, LGPL & PMC)
Legal & General Investment Management (Holdings)  Legal & General Insurance Holdings
Limited (Direct) (LGIMHD) (13,266,066 - 3.42%=    Limited (Direct) (LGIH)
PMC)
Legal & General Assurance (Pensions Management)   Legal & General Assurance Society
Limited  (PMC) (13,266,066 - 3.42%=PMC)           Limited  (LGAS & LGPL)
                                                  Legal & General Pensions Limited
                                                  (Direct) (LGPL)





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:

Notification using the total voting rights figure of 387,824,594

14. Contact name:     Ceris Stafford



15. Contact telephone number:         020 7975 3414




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