"The Bangladeshi extreme metal scene is expanding in a promising way, bands outside Dhaka, the capital city, are also excelling with their own efforts. Sylhet based thrashers H2SO4 played an important role to establish the metal scene in their own region; their debut EP "British Bangla Testament" depicts the miserable incidents that occurred during the British rule in Indian subcontinent... While the major part of the influences rooted in Bay Area thrash metal masters, H2SO4 has not stayed away from infusing elements from neoclassical, prog, traditional heavy and even technical death metal."