EXHIBIT 4.8 REGISTRATION RIGHTS AGREEMENT THIS REGISTRATION RIGHTS AGREEMENT is made and entered into as of March 6, 2002 by and between Omnicom Group Inc., a New York corporation (the "Company"), and J.P. Morgan Securities Inc., Goldman Sachs & Co....Registration Rights Agreement • March 28th, 2002 • Omnicom Group Inc • Services-advertising agencies • New York
