UPDATE 1-Indian-American judge who could replace Scalia worked on controversial cases for business

WASHINGTON, Feb 14 (Reuters) - One possible contender to replace Justice Antonin Scalia on the U.S. Supreme Court is an Indian-American appeals court judge, Sri Srinivasan, who has pro-business credentials and a stellar resume. If he was nominated his background may make it more politically challenging for Republicans as they plan to block anyone put forward by President Barack Obama.