Pakistan's Finance Minister Shaukat Tarin resigned today following months of strained relations with other members of the federal Cabinet. Tarin said he is stepping down to focus on his private business interests.Premier Yousuf Raza Gilani accepted the resignation when Tarin called on him this afternoon.Tarin, who also held the planning, revenue and economic affairs portfolios, said in his resignation that he was quitting to focus on his family business and that he could not do so if he remained a minister as it would result in a conflict of interest.Tarin, a former banker, was appointed advisor to the Prime Minister on economic affairs in October 2008 and later sworn in as Finance Minister.