Ahead of the vaccination drive for children, CoWIN registrations in Mumbai faced a massive glitch on Saturday, leaving many in worry. Officials of Brihanmumbai Municipal Corporation said that people could register on the app, but however, could not book the slots. According to reports, the vaccination drive will be carried out at nine jumbo centres in Richardson and Crudas at Byculla, NESCO jumbo centre, NSCI at Worli, BKC jumbo centre and jumbo centres at Kanjurmarg, Malad, Mulund and Dahisar. These centres will be operating as per the directives of the Centre and each has the capacity to vaccinate 1,500 children daily. Queues for children will be maintained separately to avoid a mixture of Covaxin with other adult vaccines. The Maharashtra public health department has made arrangements for the vaccination of 60.63 lakh eligible children at 650 centres.