Autonomy former-CEO counter sues HP after it lodges $5.1 bln claim

LONDON, March 31 (Reuters) - British IT entrepreneur Mike Lynch will file a counter claim against HP, he said on Tuesday, a day after the U.S. company lodged a claim against him and his former colleague Sushovan Hussain for damages of $5.1 billion over his management of Autonomy, the British IT company it bought in 2011.