North-East India is very active seismically and prone to frequent earthquakes ranging from small to large, so as a preliminary hazard assessment for the region of Assam and around it. Therefore, an attempt has been made to study the ground response of specific locations along the western Himalayan region of India as a preliminary hazard assessment for Assam and around the state. To study the predominant frequencies and amplification of the site and its response, Fourier Spectral Ratio in the form of Horizontal-Vertical Spectral Ratio (HVSR) and Standard Spectral Ratio (SSR) was carried out for seismic records of each station. Moreover, a One-Dimensional Equivalent Linear Method using SPT Borehole Data was used to estimate site amplification of specific regions of Guwahati. Analysis and comparison between the predominant frequencies and site amplification seen from all three methods and the advantages and disadvantages of one method over the other were studied. It was found that the range of frequency depends on several parameters and factors. Similarly, the site amplification factor, viz. the local site effect depends on the class of soil, viz. site classification, seismic intensity, and the topography of the region. The predominant frequency range and site amplification factor are important parameters for soil-structure issues in designing of structure. The work has also studied how a different magnitude of strong motion influences a particular site or region. While studying the effect of low-intensity earthquakes concerning high-intensity earthquakes, it was observed that prominent peaks can be recorded from higher-intensity earthquakes, thus while determining the predominant frequency of a particular site or region suitable seismic records must be selected to get better accuracy results.