Major easing of foreign investment restrictions that Indonesia announced last month as a "big bang" liberalisation should become effective by the end of March, a senior official said on Friday. Edy Putra Irawady, deputy co-ordinating economic minister, said he expects administrative issues that have held up implementation of the rule changes to be resolved this month. President Joko Widodo's administration on February 11 announced that it would open of dozens of sectors to foreign investors, including restaurants, transportation and movie theatres.