Rule 8.3- BOC Group plc

Aviva PLC
31 January 2006

                                                                        FORM 8.3



    DEALINGS BY PERSONS WITH INTERESTS IN SECURITIES REPRESENTING 1% OR MORE
              (Rule 8.3 of the City Code on Takeovers and Mergers)



1.         KEY INFORMATION


Name of person dealing  (Note 1)                     AVIVA PLC AND ITS
                                                     SUBSIDIARIES
Company dealt in                                     BOC GROUP PLC
Class of relevant security to which the dealings     ORD GBP0.25
being disclosed relate (Note 2)
Date of dealing                                      30 JANUARY 2006



2.         INTERESTS, SHORT POSITIONS AND RIGHTS TO SUBSCRIBE



(a) Interests and short positions (following dealing) in the class of relevant
security dealt in (Note 3)


                                            Long                Short
                                            Number      (%)     Number   (%)
(1) Relevant securities                     5,135,822   1.012%  0        0%
(2) Derivatives (other than options)        0           0%      0        0%
(3) Options and agreements to purchase/sell 0           0%      0        0%
Total                                       5,135,822   1.012%  0        0%



(b) Interests and short positions in relevant securities of the company, other
than the class dealt in (Note 3)


Class of relevant security:                  Long               Short
                                             Number       (%)   Number    (%)
(1) Relevant securities                      0            0%    0         0%
(2) Derivatives (other than options)         0            0%    0         0%
(3) Options and agreements to purchase/sell  0            0%    0         0%
Total                                        0            0%    0         0%



(c)        Rights to subscribe (Note 3)


Class of relevant security:       Details




3.         DEALINGS (Note 4)



(a)        Purchases and sales


Purchase/sale               Number of securities     Price per unit (Note 5)
PURCHASE                    6,600                    GBP14.885000





(b)        Derivatives transactions (other than options)


Product name,     Long/short (Note Number of securities    Price per unit
e.g. CFD          6)               (Note 7)                (Note 5)




(c)        Options transactions in respect of existing securities

(i)         Writing, selling, purchasing or varying


Product    Writing,      Number of   Exercise  Type, e.g. Expiry    Option
name,e.g.  selling,      securities  price     American,  date      money paid/
call       purchasing,   to which              European             received
option     varying etc.  the option            etc.                 per unit
                         relates                                    (Note 5)
                         (Note 7)




(ii)        Exercising


Product name, e.g. Number of securities     Exercise price per unit (Note 5)
call option




(d)        Other dealings (including new securities) (Note 4)


Nature of transaction (Note 8)     Details              Price per unit (if
                                                        applicable) (Note 5)




4.         OTHER INFORMATION



Agreements, arrangements or understandings relating to options or derivatives



Full details of any agreement, arrangement or understanding between the person
disclosing and any other person relating to the voting rights of any relevant
securities under any option referred to on this form or relating to the voting
rights or future acquisition or disposal of any relevant securities to which any
derivative referred to on this form is referenced.  If none, this should be
stated.



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Is a Supplemental Form 8 attached? (Note 9)
            NO




Date of disclosure                                 31 JANUARY 2006

Contact name                                       NEIL WHITTAKER

Telephone number                                   01603 684420

If a connected EFM, name of offeree/offeror with   N/A
which connected
If a connected EFM, state nature of connection     N/A
(Note 10)

Notes

The Notes on Form 8.3 can be viewed on the Takeover Panel's website at
www.thetakeoverpanel.org.uk


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