Here's Bloomberg's summary of what happened.

An Indian surgeon used infected instruments to sterilize 83 women in about six hours, according to a local medical official, leaving 10 [now eleven or more] of  them dead and another 69 hospitalized in the central state of Chhattisgarh.

The doctor breached guidelines that limit surgeons from performing more than 30 sterilizations a day, said the official, who asked not to be named because details of the investigation are private. He also failed to disinfect the instruments before using them again, the official said.

"It's a case of negligence," Raman Singh, the state's chief minister, told reporters at a news conference today, adding that the doctor, R.K. Gupta, had been suspended and a criminal investigation is under way.