Holding(s) in Company

Carillion PLC
19 March 2007



TR-1: notification of major interests in shares
                                                        --------------------
1. Identity of the issuer or the underlying               CARILLION PLC
issuer of existing shares to which voting rights        --------------------
are attached:
-------------------------------

2. Reason for the notification (please tick the appropriate box or
boxes)                                                                      -------
--------------------------------------------

An acquisition or disposal of voting rights                                 X
--------------------------------------------                              -------

An acquisition or disposal of financial instruments which may result in
the acquisition of shares already issued to which voting rights are       -------
attached
--------------------------------------------

An event changing the breakdown of voting rights
--------------------------------------------                              -------

Other (please specify): Initial notification as per regulatory
requirement                                                                 -------
--------------------------------------------

3. Full name of person(s) subject to the                  Schroders plc
notification obligation:                                --------------------
-------------------------------

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

5. Date of the transaction (and date on which               15/03/2007
the threshold is crossed or reached if                  --------------------
different):
-------------------------------

6. Date on which issuer notified:                           16/03/2007
-------------------------------                         --------------------

7. Threshold(s) that is/are crossed or reached:          From 18% to 19%
                                                        --------------------
-------------------------------

8. Notified details:
-------------------------------                              --------------------


A: Voting rights attached to shares

Class/type of  Situation previous to the Resulting situation after the triggering
shares         Triggering transaction    transaction
if possible
using the ISIN Number of    Number of    Number   Number of voting    % of voting
CODE           Shares       Voting       of       rights ix           rights
                            Rights       shares
                            viii         Direct   Direct Indirect     Direct   Indirect
                                                  x      xi

Ordinary       53,221,417   53,221,417   N/A      N/A    53,786,681   N/A        19.125%
GB0007365546

B: Financial Instruments

Resulting situation after the triggering transaction xii
Type of      Expiration Exercise/      Number of voting rights that may % of
financial    date       Conversion     be acquired if the instrument is voting
instrument   xiii       Period/ Date   exercised/ converted.            rights
                        xiv


Total (A+B)

Number of voting rights                 % of voting rights

53,786,681                              19.125%


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

Schroder Investment Management Limited                   50,071,212      17.80%
Schroder Investment Management North America Limited      3,713,119       1.32%
Schroder &Co Limited                                          2,350    0.00084%

Proxy Voting:

10. Name of the proxy holder:

11. Number of voting rights proxy holder will cease to hold:

12. Date on which proxy holder will cease to hold voting rights:
     
13. The Shares referred to in section 9 are held in portfolios manages by those 
firms on a discretionary bases  for clients under investment management 
agreements.

Additional information:

14. Contact name:

15. Contact telephone number:

Annex Notification Of Major Interests In Shares xvi

A: Identity of the person or legal entity subject to the notification
obligation

Full name (including legal form for legal entities)               Schroder Plc

Contact address (registered office for legal entities)            31 Gresham
                                                                  Street
                                                                  London
                                                                  EC2V 7QA

Phone number                                                      020 7658 2521

Other useful information (at least legal representative for legal Andrea Rowe
persons)


B: Identity of the notifier, if applicable xvii

Full name                                                         Tim George

Contact address                                                   Carillion plc

Phone number                                                      01902 318137

Other useful information (e.g. functional relationship with the   Deputy Company
person or legal entity subject to the notification obligation)    Secretary

C: Additional information





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