Power supply to Kairali Nagar in the Kulathur electrical section limits will be disrupted from 9 a.m. to 5.30 p.m. on Tuesday due to repairs, the KSEB said in a pressnote. Supply to Palappur, Channelkkara, Panathura and Olathinkara in the Thiruvallam section also will be hit from 9 a.m. to 5.30 p.m. on Tuesday.