Filed by: Cognizant Technology Solutions Corporation

Filing under Rule 425 under the Securities Act of 1933
Subject Company: Cognizant Technology Solutions Corporation
Subject Company's Commission File No: 000-24429

Cognizant Technology Solutions Corporation and IMS Health Corporation jointly
published the following notice on January 15, 2003

This announcement is neither an offer to exchange nor a solicitation of an offer
to exchange the securities. The exchange offer is made only by the offering
circular-prospectus and related offering documents that IMS Health Incorporated
has distributed to its stockholders. IMS Health is not offering to exchange, or
soliciting any offers to exchange, securities pursuant to the exchange offer in
any jurisdiction in which those offers or exchanges would not be permitted. In
those jurisdictions in the United States where the securities, blue sky or other
laws require the exchange offer to be made by a licensed broker or dealer, the
exchange offer shall be deemed to be made on behalf of IMS Health by Goldman,
Sachs & Co. and/or Bear, Stearns & Co. Inc.

Notice of Offer to  Exchange  0.309  Shares of Class B Common  Stock of
Cognizant Technology Solutions Corporation for each share of Common Stock of IMS
Health Incorporated


IMS Health Incorporated is offering to exchange 0.309 shares of Cognizant
Technology Solutions Corporation class B common stock for each share of IMS
Health common stock that it accepts in the exchange offer. The terms and
conditions of the exchange offer are described in the offering
circular-prospectus and the related offering documents that IMS Health has
distributed to IMS Health stockholders.

Each share of Cognizant class B common stock received in the exchange offer will
convert automatically into one share of Cognizant class A common stock when it
is first transferred after the exchange offer or in certain other circumstances
described in the offering circular-prospectus. Cognizant's class A common stock
is listed for quotation on the Nasdaq National Market under the symbol "CTSH."

IMS Health will accept up to 36,540,129 IMS Health shares and will distribute up
to 11,290,900 shares of Cognizant class B common stock in the exchange offer,
representing all the Cognizant shares that IMS Health currently owns. If IMS
Health stockholders tender more than 36,540,129 IMS Health shares, IMS Health
will generally accept tenders on a pro rata basis under the terms of the offer.

The offer is conditioned on, among other things, the tender of at least
27,400,000 IMS Health shares. IMS Health believes that the exchange of shares
under the offer will generally be tax-free to exchanging stockholders and to IMS
Health under federal income tax laws.

None of IMS Health, Cognizant, any of their respective officers or directors or
the joint dealer managers makes any recommendation as to whether or not
stockholders should tender their IMS Health shares. Stockholders must make their
own decisions after reading the offering circular-prospectus and related
offering documents.

IMS Health expressly reserves the right, at any time or from time to time, in
its sole discretion for any reason, including the non-satisfaction of any of the
conditions specified in the offering circular-prospectus under the caption "The
Exchange Offer--Conditions for Completion of the Exchange Offer," to extend the
period of time during which the exchange offer is open or to amend the terms of
the exchange offer in any respect, including changing the exchange ratio. IMS
Health will publicly announce any such extension or amendments promptly.

Questions and requests for assistance or for additional copies of the offering
circular-prospectus, the letter of transmittal and other exchange offer
materials may be directed to the information agent or the joint dealer managers,
at their respective addresses and telephone numbers set forth below, and copies
will be furnished promptly at no charge.

The Information Agent for the Exchange Offer is:
17 State Street, 10th Floor
New York, New York 10004
Banks and Brokers Call: (212) 440-9800
All Others Call Toll Free: (866) 203-1913

The Joint Dealer Managers for the Exchange Offer are:
     Goldman, Sachs & Co.               Bear, Stearns & Co. Inc.
     85 Broad Street                    383 Madison Avenue
     New York, New York 10004               New York, New York 10179
     (800) 323-5678 (Toll-Free)             (866) 827-9756 (Toll-Free)
     (212) 902-1000                         (212) 272-9756

January 15, 2003


Investors are urged to read the documents that IMS Health and Cognizant have
filed and will file with the SEC in connection with the exchange offer. These
documents contain important terms and conditions about the exchange offer and
the potential effect of the exchange offer on the companies and their
stockholders. These documents can be accessed online at the SEC's website
(, as well as in the "Investors" areas on the IMS Health and
Cognizant websites.