When an earthquake occurs, it consists of three translational and three rotational components of ground motion. To safeguard the lifeline buildings from earthquakes, these buildings are required to be designed for all six components of ground motion. However, no instruments are developed to record the rotational components of ground motion; therefore, in usual design practice, only translational components of ground motion are used for seismic analysis of buildings. Many researchers have noted that the rotational component produces a significant seismic response. In the present study, after a critical review of the various methods, a simple method has been identified for the generation of torsional ground motion based on the recorded translational components of ground motion for local site conditions. The application of the identified method has been illustrated for recorded translational accelerograms in the Indian region. Further, this torsional component of ground motion is applied to the building to analyze the additional seismic contribution. It can be seen that the additional contribution of the torsional component of ground motion is between 5 and 15% of that with the translational component.