Holding(s) in Company

3i Group PLC
15 June 2006

                   NOTIFICATION OF MAJOR INTERESTS IN SHARES

1.         Name of company

           3i Group plc.

2.         Name of shareholders having a major interest

           Barclays PLC, through its legal entities listed in 14 below.

3.         Please state whether notification indicates that it is in respect of
holding of the shareholder named in 2 above or in respect of a non-beneficial
interest or in the case of an individual holder if it is a holding of that
person's spouse or children under the age of 18

            In respect of those named in 2 above.

4.         Name of the registered holder(s) and, if more than one holder, the
number of shares held by each of them

               REGISTERED HOLDER                   ACCOUNT DESIGNATION                    HOLDING AS
                                                                                      AT 9 JUNE 2006

Bank of New York                                                                              38,500
Barclays Capital Nominees Limited                                                            675,155
Barclays Capital Nominees Limited                                                          7,756,465
Barclays Capital Nominees Limited                                                            215,000
Barclays Global Investors Canada                                                              34,771
BARCLAYS TRUST CO AS EXEC/ADM C
000000000000000000                                                                             2,451
Barclays Trust Co DMC69
C 000000000000000000                                                                           8,564
Barclays Trust Co E99
C 000000000000000000                                                                             188
Barclays Trust Co R69
C 000000000000000000                                                                          20,016
Chase Nominees Ltd                                        16376                              269,813
Chase Nominees Ltd                                        28270                              176,553
Clydesdale Nominees HGB0125                            00069301301                             5,364
Clydesdale Nominees HGB0225                            00120146302                             1,080
Clydesdale Nominees HGB0225                            00120147102                             1,080
Gerrard Nominees Limited                                  602698                                 305
Gerrard Nominees Limited                                  652198                               5,647
Gerrard Nominees Limited                                  660968                                 272
Greig Middleton Nominees Limited (GM1)                                                        49,089
Investors Bank and Trust Co.                                                               2,818,801
Investors Bank and Trust Co.                                                                  25,709
Investors Bank and Trust Co.                                                                   3,729
Investors Bank and Trust Co.                                                                  32,256
Investors Bank and Trust Co.                                                                 565,025
Investors Bank and Trust Co.                                                                  92,440
Investors Bank and Trust Co.                                                                  56,563
Investors Bank and Trust Co.                                                                   8,766
Investors Bank and Trust Co.                                                                  51,581
Investors Bank and Trust Co.                                                               1,530,897
Investors Bank and Trust Co.                                                                  16,468
Investors Bank and Trust Co.                                                                  24,656
Investors Bank and Trust Co.                                                                 168,693
Investors Bank and Trust Co.                                                                 121,844
Investors Bank and Trust Co.                                                                  16,413
JP Morgan (BGI Custody)                                   16331                              150,952
JP Morgan (BGI Custody)                                   16338                               33,037
JP Morgan (BGI Custody)                                   16341                              304,802
JP Morgan (BGI Custody)                                   16342                               70,735
JP Morgan (BGI Custody)                                   16400                            4,823,501
JP Morgan (BGI Custody)                                   17011                                9,768
JP Morgan (BGI Custody)                                   18409                              431,789
JPMorgan Chase Bank                                                                           28,260
JPMorgan Chase Bank                                                                            4,759
JPMorgan Chase Bank                                                                            5,617
JPMorgan Chase Bank                                                                           49,146
JPMorgan Chase Bank                                                                           18,023
JPMorgan Chase Bank                                                                            1,777
JPMorgan Chase Bank                                                                           33,155
JPMorgan Chase Bank                                                                            5,643
JPMorgan Chase Bank                                                                           16,002
JPMorgan Chase Bank                                                                           73,952
JPMorgan Chase Bank                                                                           78,972
JPMorgan Chase Bank                                                                           57,491
JPMorgan Chase Bank                                                                          300,114
JPMorgan Chase Bank                                                                           58,861
Mellon Trust - US Custodian                                                                   37,782
Mitsui Asset                                                                                   9,051
R C Greig Nominees Limited                                                                   586,546
R C Greig Nominees Limited a/c AK1                                                           150,258
R C Greig Nominees Limited a/c BL1                                                            19,985
R C Greig Nominees Limited a/c CM1                                                            16,600
R C Greig Nominees Limited GP1                                                                53,157
R C Greig Nominees Limited SA1                                                                38,662
R C Greig Nominees Limited SA1                           AAMCM32                                 770
Reflex Nominees Limited                                                                        3,613
State Street Boston                                                                          281,040
Trust & Custody Services Bank                                                                    522
Trust & Custody Services Bank                                                                  5,415
Zeban Nominees Limited                                                                         6,961

                Total                                                                     22,560,872

5.         Number of shares / amount of stock acquired

           Not known.

6.         Percentage of issued class

           Not known.

7.         Number of shares / amount of stock disposed

           Not known.

8.         Percentage of issued class

           Not known.

9.         Class of security

           Shares of 53 1/8p each.

10.        Date of transaction

           Not known.

11.        Date company informed

           15 June 2006.

12.        Total holding following this notification

           22,560,872.

13.        Total percentage holding of issued class following this notification

           4.10%.

14.        Any additional information

            Legal entities through which Barclays PLC held its above interest as
at 9 June 2006 are listed below.


                   LEGAL ENTITY                                                              HOLDING

Barclays Private Bank and Trust Ltd                                                            7,524
Gerrard Ltd                                                                                  921,291
Barclays Global Investors Ltd                                                              5,525,103
Barclays Global Investors Canada Ltd                                                          34,771
Barclays Global Investors Japan Ltd                                                           55,563
Barclays Bank Trust Company Ltd                                                               31,219
Barclays Private Bank and Trust Ltd                                                            3,613
Barclays Global Investors Japan Trust                                                        624,028
Barclays Life Assurance Co Ltd                                                               745,847
Barclays Global Investors Australia Ltd                                                       49,146
Barclays Capital Securities Ltd                                                            8,431,620
Barclays Private Bank Ltd                                                                      6,961
Barclays Capital Inc                                                                         215,000
Barclays Global Investors, N.A.                                                            4,030,215
Barclays Global Fund Advisors                                                              1,878,971

    Total Holding                                                                         22,560,872

15.       Name of contact and telephone number for queries

          Neetha Ranchhod - 0207 975 3530.

16.       Name and signature of authorised company official responsible for
making this notification

            Robin Jack-Kee, Manager, Group Secretariat.





Date of Notification



15 June 2006


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