If we grow wheat during kharif season the productivity would be minuscule and would not be profitable for the farmers because,the wheat crop needs mild to moderate temperature and frost free days along with irrigation but no water logging.
i.e.they need winter season.In the kharif season; which coincides with the peak summer months in
India, temperature is at its peak which is not suitable for wheat.
Moreover, during rainy season lot of water accumulates in fields which
would be harmful for wheat crop.