In this paper we nake use of digital strong motion accelerograns recorded for Dharamshala earthquake of April 26,1986 to astimate its Mr. Digital acceleration data from six stations around the epicentre in the Dharamshala region are inputs for generation of synthetic Wood-Anderson seismograms using the fourth order Runge-Kutta method. An estimation of local magnitude (M) is made from the synthetic W-A seismograms. An average value of M 5.5 is in good agreement with the previously reported value of 5.40.