Congress President Sonia Gandhi has extended her greetings on the occasion of Makar Sankranti, Pongal, Uttarayan, Bhogali Bihu and Maghi. <br/><br/>In her message, Mrs Gandhi said these harvest festivals signify a unifying renewal and provide an occasion to acknowledge the contribution of farmers. The Congress President hoped that these festivals will usher in prosperity, happiness and joy for all.<br/><br/>