According to Narada muni, Kartika(Tulam-Vrischikam), Magha(Makaram-Kumbham) and Vaisakha(Medam-Idavam) are the finest months, but of these three, Vaisakha is supreme. Vaisakha has the capacity to remove the sins of past births and liberate the worshipper from worldly bondage. It is the best month for dharma, yagna, rituals and tapasya, as it is the most suitable compared to other seasons.