Preparations for the Makaravilakku festival at Sabarimala Ayyappa temple on January 15 are in full swing, with the authorities gearing up for the arrival of more than four lakh devotees to witness the Makarajyothi (sacred light). The Travancore Devaswom Board (TDB) has made arrangements to provide free meals to 1.5 lakh devotees on January 14 and 15.