Here are some contacts that you might find useful in emergency situations:

COVID-19 related questions/emergencies/clarifications: 1533 (toll-free); +91-80-4684-8600/6669-2000 | Home Quarantine related inquiries: Telegram Messenger/WhatsApp – +91 97777 77684, voice call – 080 45451111 | BBMP Control Room: 080-22221188 | In the event of a power outage, contact BESCOM: 1912. If the water supply is disrupted in your area, contact BWSSB: 1916