Vice President C. P. Radhakrishnan will be on a day-long visit to Keralam tomorrow. During his visit, the Vice-President will participate in the Vishwa Seva Dinam celebrations at Mata Amritanandamayi Math, Kollam, being organised on the occasion of the 73rd birthday of Mata Amritanandamayi. The programme will also feature the annual celebrations and the launch of several humanitarian initiatives.