Major Interests in Shares

TR-1: Notifications of Major Interests in Shares                               

1. Identity of the issuer or the underlying    Serco Group plc                 
issuer of existing shares to which voting                                      
rights are attached:                                                           
                                                                               
2. Reason for notification (yes/no)                                            
                                                                               
An acquisition or disposal of voting rights                         Yes        
                                                                               
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):______________                                          
                                                                               
3. Full name of person(s) subject to    Legal & General Group plc (L&G)        
notification obligation:                                                       
                                                                               
4. Full name of shareholder(s) (if      Legal & General Assurance (Pensions    
different from 3):                      Management) Limited (PMC)              
                                                                               
5. Date of transaction (and date on     3 November 2008                        
which the threshold is crossed or                                              
reached if different):                                                         
                                                                               
6. Date on which issuer notified:       5 November 2008                        
                                                                               
7. Threshold(s) that is/are crossed or  4% - 3% (L&G)                          
reached:                                                                       
                                                                               
8: Notified Details                                                            
                                                                               
A: Voting rights attached to shares                                            
                                                                               
Class/    Situation         Resulting situation after the triggering           
type of   previous to the   transaction                                        
shares    triggering                                                           
          transaction                                                          
If                                                                             
possible                                                                       
use ISIN                                                                       
code                                                                           

Number   Number of Number   Number of voting     Percentage of                 
of       voting    of       rights               voting rights                 
shares   rights    shares                                                      
                                                                               
                            Direct      Indirect Direct    Indirect            
                                                                               
ORD 19,557,929 19,557,929 18,988,163 18,988,163 3.90                           
                                                                               
GBP 0.02                                                                       

B: Financial Instruments                                                       
                                                                               
Resulting situation after the triggering transaction                           
                                                                               
Type of        Expiration     Exercise/       No. of voting      Percentage of 
financial      date           conversion      rights that may be voting rights 
instrument                    period/date     acquired (if the                 
                                              instrument                       
                                              exercised/                       
                                              converted)                       
                                                                               

Total (A+B)                                                                    
                                                                               
Number of voting rights                 Percentage of voting rights            
                                                                               
18,988,163                              3.90%                                  

9. Chain of controlled undertakings through which the voting rights and /or the
financial instruments are effectively held, if applicable:                     
                                                                               
Legal & General Group Plc (Direct and Indirect) (Group)                        
                                                                               
Legal & General Investment Management (Holdings) Limited (LGIMH) (Direct and   
Indirect)                                                                      
                                                                               
Legal & General Investment Management Limited (Indirect) (LGIM)                
                                                                               
Legal & General Investment Management (Holdings) Limited (Direct) (LGIMHD)     
(16,952,895 - 3.48% = PMC)                                                     
                                                                               
Legal & General Assurance (Pensions Management) Limited (PMC) (16,952,895 -    
3.48% = PMC)                                                                   
                                                                               
Legal & General Insurance Holdings Limited (Direct) (LGIH)                     
                                                                               
Legal & General Assurance Society Limited (LGAS & LGPL)                        
                                                                               
Legal & General Pensions Limited (Direct) (LGPL)                               

Proxy Voting:                                                                  
                                                                               
10. Name of proxy holder:               n/a                                    
                                                                               
11. Number of voting rights proxy       n/a                                    
holder will cease to hold:                                                     
                                                                               
12. Date on which proxy holder will     n/a                                    
cease to hold voting rights:                                                   

13. Additional information:             Notification using the total voting    
                                        rights figure of 486,237,580           
                                                                               
14 Contact name:                        Helen Lewis (LGIM)                     
                                                                               
15. Contact telephone name:             020 3124 3851