Federal Interior Minister Rehman Malik has said that his country is serious in the probe of Mumbai attacks. The interior minister was talking to Pakistan High Commissioner in India, Shahid Malik who called on him here on Wednesday. In a statement issued from the Interior Ministry, the meeting which was held in a very cordial atmosphere discussed progress achieved on Mumbai blast on both sides. Pakistani envoy in India briefed Rehman Malik on Pak-India Secretary Level talks recently held in New Delhi.