Owing to scheduled Information Technology system upgradation and server maintenance, the online services of Chamundeshwari Electricity Supply Corporation (CESC) such as online bill payment, new connection applications, name and tariff change requests, cash counter services and other online services will be disrupted from 8.30 am on July 25 till 10 am on July 27 across CESC service areas including VV Mohalla, Hootagalli, Kuvempunagar, Ramakrishnanagar, Central Sub-Division, Chamundipuram, NR Mohalla, Jyothinagar, Nanjangud, K.R. Nagar, Hunsur, Chamarajanagar, Kollegal, Mandya, Malavalli, Hassan, Channarayapatna, Arasikere and Madikeri, according to a press release.