Analysis of the incidence of cholera in India suggests the cyclicity of its manifestations, which is associated with solar activity. The peak numbers of patients have been found to occur an average every 3.1, 5.2, and 10.9 years, which are timed in a phase of the minimum solar activity to the year of its previous minimum and in a phase of its maximum to -2, +1, +2, and +4 years of the maximum.