Centa, a teacher accreditation-linked edtech startup, said it has raised $1 million from a clutch of 30 angel investors including JP Morgan India chairman Leo Puri, Medanta Group of Hospitals chief Pankaj Sahni, AZB & Partners founding partner Bahram Vakil and ICICI private equity director Nikhil Mohta, according to ETtech report. In the past, the…