Energy is one of the most important factors for a developing country like Bangladesh. Like the rest of the countries of the world, the demand for energy is increasing day by day in our country. Energy sector of Bangladesh is exceedingly depended on the limited gas reserve. Given the rising demand for fuel it will be very difficult t to meat this demand with only indigenous natural gas. About 80% of the power generation in the country is now gas based. Therefore diversification of fuel has become indispensible it has been envision 2021 that 53% of the power generation will be coal based by year 2021. The worldwide scenario shows that, Coal is the ultimate fuel for future. Bangladesh is very lucky that it has got significant but almost untapped high quality coal resource. Five coal fields in the country contain 3.3 billion metric tons coal. Recently rate of coal production from Barapukuria are increased significantly due to application of modern coal extracting method, LTCC. Coal to Synthesis gas conversion, is an emerging technology to wide the application area of coal and commercially proved technology worldwide. The paper gives an overview of the current state of coal scenario and natural gas scenario in Bangladesh. Here we discuss the principles of coal to syngas conversion technology and aside from a brief introduction to 5 process methods for conversion of coal to Synthesis Natural Gas (SNG). The Steam-Oxygen Gasification, Hydrogasification, Catalytic Steam Gasification, Underground Steam-Oxygen Gasification, Underground Hydrogasification processes are discussed with the help of process flow diagram. This paper also summaries the present scenario of Syngas production worldwide. Finally we propose a coal based syngas infrastructure, where coal is converted to syngas, then processed to make Synthesis Natural Gas (SNG), then it transmitted via dedicated pipeline or injected into existing natural gas pipeline to the different types of user like Ho