Holding in Company

IMI PLC
16 October 2001


                  DEALINGS BY SUBSTANTIAL SHAREHOLDERS


1)   NAME OF COMPANY

IMI PLC


2)   NAME OF SHAREHOLDER HAVING A MAJOR INTEREST

LEGAL & GENERAL INVESTMENT MANAGEMENT LTD


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

BENEFICIAL


4)   Name of the registered holder(s) and, if more than one holder, the 
     number of shares held by each of them.


SEE BELOW

5)   Number of shares/amount of stock acquired.

228,000


6)   (0.06%) of issued Class

7)   Number of shares/amount of stock disposed



8)   ( N/A %) of issued Class


9)   Class of security

ORDINARY SHARES


10)  Date of transaction

11.10.01


11)  Date company informed

16.10.01


12)  Total holding following this notification

10,624,142

               
13)  Total percentage holding of issued class following this notification

3.02


14)  Any additional information

LEGAL AND GENERAL HAVE NOTIFIED THE COMPANY THAT THEIR INTEREST HAS NOW EXCEEDED
3%


15)  Name of contact and telephone number for queries

J O'SHEA
0121  356  4848 EXT. 4354


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

     Date of Notification ...16.10.01.....................



LETTER TO IMI PLC

COMPANIES ACT 1985 - DISCLOSURE OF INTEREST IN SHARES

Consequent upon a purchase in the market of 228,000 shares on the 11 October 
2001, we now hold the following number of shares which are not subject to a 
concert party and will be registered as follows:

Material Interest

HSBC GLOBAL CUSTODY NOMINEE (UK) LTD A/C 886615            317,778
HSBC GLOBAL CUSTODY NOMINEE (UK) LTD A/C 886603            710,000
HSBC GLOBAL CUSTODY NOMINEE (UK) LTD A/C 775245          1,613,778
HSBC GLOBAL CUSTODY NOMINEE (UK) LTD A/C 754612            500,000
HSBC GLOBAL CUSTODY NOMINEE (UK) LTD A/C 766793             20,000
HSBC GLOBAL CUSTODY NOMINEE (UK) LTD A/C 360509            218,642
HSBC GLOBAL CUSTODY NOMINEE (UK) LTD A/C 357206          6,983,944  
HSBC GLOBAL CUSTODY NOMINEE (UK) LTD A/C 866203            260,000

                                                        10,624,142    3.02%

Please note that this percentage is based on our understanding that your issued 
share capital is 351,400,000

LETTER FROM LEGAL & GENERAL INVESTMENT MANAGEMENT LIMITED