Dominant growth of Islamic financial system has ushered in a new era of alternative world economic approach- Islamic Financial System (IFS). It is a well-established fact that Interest (Riba) has negative comportment for an efficient capital market. Greedy intent of making quick buck increases the riskiness of the market. This study ventures deep into full potential of an Islamic Capital Market (ICM) for the flow of funds in Bangladesh. Both the international and domestic challenges are decelerating the opportunities. But, continuous upsurge of Islamic investors and stable market confidence for such market might overcome the snags. The present paper investigates the functioning of Islamic securities and examines the possibilities of their development within the existing regulations and economic determinants in Islamic countries for example Bangladesh.