Holding(s) in Company

3i Group PLC
10 March 2006

                                  SCHEDULE 10

                   NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Name of company

3i Group plc

2. Name of shareholders having a major interest

FMR Corp and its direct and indirect subsidiaries, and Fidelity International
Limited (FIL) and its direct and indirect subsidiaries, both being non-
beneficial holders, and Mr Edward C Johnson 3d as a principal shareholder of FMR
Corp and FIL.

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

             Shares Held         Management Company                 Nominee/Registered Name
               2,073,414                        FPM             State Str Bk and Tr Co Lndn
               1,878,162                        FPM                  JP Morgan, Bournemouth
               1,052,608                        FPM                   Northern Trust London
                 589,287                        FPM                           HSBC Bank plc
                 521,355                        FPM               Bank of New York Brussels
                 102,541                        FPM                             Mellon Bank
                  74,141                        FPM                        Societe Generale
                  38,647                        FPM                     Clydesdale Bank plc
               6,570,473                       FMTC             State Street Bank and Tr Co
               2,703,628                       FMTC          Brown Brothers Harriman and Co
               1,933,597                       FMTC                       Northern Trust Co
               1,678,447                       FMTC                        Mellon Bank N.A.
               1,106,701                       FMTC                     JPMorgan Chase Bank
                 477,075                       FMTC                       CIBC Mellon Trust
                 350,735                       FMTC                        Bank of New York
                  63,898                       FMTC                   Royal Trust - Toronto
                  46,300                        FMR                        Mellon Bank N.A.
               1,345,152                       FISL                  JP Morgan, Bournemouth
                 401,327                     FIM HK               Bermuda Trust Far East HK
               1,456,464                        FIL                  JP Morgan, Bournemouth
                 674,897                        FIL             Chase Manhttn BK AG Frnkfrt
                 261,684                        FIL             State Street Bank Australia
                 236,420                        FIL             State Str Bk and Tr Co Lndn
                 188,556                        FIL              Brown Bros Harrimn Ltd Lux
                 167,113                        FIL              National Astl Bk Melbourne
                 135,247                        FIL               Bank of New York Brussels
                 128,687                        FIL                   Northern Trust London
                 116,500                        FIL                       Northern Trust Co
                  54,163                        FIL                          ING Luxembourg
                 208,311                        FIJ              Master Trust Bank of Japan
                  89,016                        FIJ                Nomura Trust and Banking
                  57,356                        FIJ          Trust & Cust Svcs Bk Ltd, Toko
                 473,800                        FII             Bank of New York Europe Ldn

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

Ordinary Shares of 53 1/8p each

10. Date of transaction

not known

11. Date company informed

10 March 2006

12. Total holding following this notification

27,255,702

13. Total percentage holding of issued class following this notification

4.95%

14. Any additional information

FMR Corp is the parent holding company of Fidelity Management & Research Company
(FMRCO), investment manager for US mutual funds, and Fidelity Management Trust
Company (FMTC), a US state chartered bank which acts as a trustee or investment
manager of various pension and trust accounts.

Fidelity International Limited (FIL) is the parent holding company for various
direct and indirect subsidiaries, including Fidelity Investment Services Ltd
(FISL) and Fidelity Pension Management (FPM), investment managers for various
non-US investment companies and institutional clients.

15. Name of contact and telephone number for queries
Sofia Bernsands - 020 7975 3228

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

Jonathan Murphy

Date of notification

10 March 2006




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