The Curable Trust is a fake NGO and a major scam in Delhi. Many people, including my sister, have received calls from a suspicious NGO named thecurabletrust.org.in. One caller claiming that there is a medical emergency, and a 4-month-old girl named Siya needs immediate surgery at hospital. They put emotional pressure on victims to donate but refuse to provide contact details of hospital.
The best way to confirm authenticity is to directly ask for the name of the treating doctor and the hospitals contact number. Most of these NGOs are fraudsters who call you to donations in the name of medical emergency.
Do not donate without proper verification and report such scams to the authorities for the safety of others.