The Prime Minister has said naxal problem in various states is the biggest internal threat the country is facing today. Speaking to media in Mumbai this afternoon, he said, government is taking all possible steps to eradicate this menace. Dr. Manmohan Singh said, the causes that breed naxalism will have to be seriously looked into. He condemned the terror strike in Pakistan. He also rubbished the Pak allegation that India exported terrorism to Balochistan. <br/>In reply to a question about price rise, Dr. Manmohan Singh said, prices of certain commodities have gone up due to various reasons including drought and rain havoc in some states. He said, if the Rabi crop is normal, prices will stabilise. <br/><br/>