Holding(s) in Company

Centrica PLC
                  

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TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES
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1. Identity of the issuer or the underlying issuer
of existing shares to which voting rights are                                                               Centrica plc
attached:
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2 Reason for the notification (please tick the appropriate box or boxes):
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An acquisition or disposal of voting rights
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An acquisition or disposal of financial instruments which may result in the
acquisition of shares already issues to which voting rights are attached
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An event changing the breakdown of voting rights
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Other (please specify): First notification under DTR Sourcebook                                                  X
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3. Full name of person(s) subject to the                                               Legal & General Group Plc (Group)
notification obligation:                                            Legal & General Investment Management Limited (LGIM)
                                                                                         Legal & General Group Plc (L&G)
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4. Full name of shareholder(s) (if different               Legal & General Assurance (Pensions Management) Limited (PMC)
from 3.):
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5. Date of the transaction and date on
which the threshold is crossed or
reached:                                                                                                            N/A
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6. Date on which issuer notified:                                                                       27 February 2007
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7. Threshold(s) that is/are crossed or                                                                        5% (Group)
reached:                                                                                                 Above 5% (LGIM)
                                                                                                          Above 3% (L&G)
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8. Notified details:
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A: Voting rights attached to shares
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Class/type of       Situation previous                 Resulting situation after the triggering transaction
shares              to the Triggering
                    transaction
if possible using   ---------------------------------- -----------------------------------------------------------------
the ISIN CODE       Number          Number             Number          Number of voting               % of voting rights
                    of              of                 of shares       rights
                    Shares          Voting             --------------- ------------------------------ ------------------
                                    Rights             Direct          Direct    Indirect             Direct   Indirect
------------------- --------------- ------------------ --------------- --------- -------------------- -------- ---------
Ordinary 6 14/81p
                    170,561,546
GB00B033F229         4.029%
                    (under s-198
                     07/10/04)      170,561,546 4.02%  171,048,880     171,048,880    16,694,166      4.669%   0.456%
------------------- --------------- ------------------ --------------- -------------- --------------- -------- ---------


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


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Total (A+B)
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Number of voting rights                                     % of voting rights
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187,743,046                                                 5.12%
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9. Chain of controlled undertakings through which the voting rights and/or the
financial instruments are effectively held, if applicable:
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Legal & General Group Plc (Direct and Indirect) (Group) (187,743,046 - 5.12% = Total
 Position)

Legal & General Investment Management (Holdings) Limited (LGIMH) (Direct and Indirect)
 (187,743,046 - 5.12%)

Legal & General Investment Management Limited (Indirect) (LGIM) (187,743,046 - 5.12% =
 Total Position)

Legal & General Group Plc (Direct) (L&G) (171,048,880 - 4.66% = LGAS, LGPL & PMC)

Legal & General Investment Management (Holdings) Limited (Direct) (LGIMHD) (111,941,771
 - 3.05% = PMC)
Legal & General Insurance Holdings Limited (Direct) (LGIH)

Legal & General Assurance (Pensions Management) Limited (PMC) (111,941,771 - 3.05%)
Legal & General Assurance Society Limited (LGAS & LGPL)
Legal & General Pensions Limited (Direct) (LGPL)
                                                                                         -------------------------------

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Proxy Voting:
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10. Name of the proxy holder:                                                    N/A
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11. Number of voting rights proxy holder will cease
to hold:                                                                         N/A
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12. Date on which proxy holder will cease to hold
voting rights:                                                                   N/A
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 13. Additional information:                                Notification using total voting rights fugure of
                                                             3,663,306,696
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14. Contact name:                                           Robin Healy
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15. Contact telephone number:                               01753 494 017
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