Elliott disclosed a more than 4 per cent stake in Cognizant in November and had urged the IT services provider to take steps to boost shareholder value.
Cognizant said it's board has approved a plan to return $3.4 billion to shareholders over the next two years through share buybacks and dividend.
The company reported fourth-quarter revenue that narrowly missed analysts' estimates while profit beat by a cent.
The company expects to start the repurchase of $1.5 billion worth of shares in the first quarter, initiate a cash dividend of 15 cents per share in the second quarter and repurchase $1.2 billion shares during 2017 and 2018.
Separately, Cognizant said fourth-quarter revenue rose about 7 per cent to $3.46 billion from $3.23 billion helped by ongoing demand for its cloud services.
(This story has not been edited by NDTV staff and is auto-generated from a syndicated feed.)