Dhaka, Aug. 12 -- The benchmark index of the Dhaka Stock Exchange (DSE) rose to hit a five-month high on Sunday when the major index surpassed the 6,000-point mark, extending its gaining momentum for the fourth successive day.Meanwhile, Rubayat-Ul Islam, chairman of the Bangladesh Securities and Exchange Commission, stepped down on Saturday night five days after the fall of Prime Minister Sheikh Hasina-led Awami League government in the wake of a mass uprising.Buoyed by the development of the country's political landscape, investors are making fresh bets on large-cap and blue-chip stocks with the hopes of the return of good governance in the capital market.Shares of large-cap and blue-chip stocks such as Islami Bank Bangladesh, Grameenpho...