The four convicts in the Nirbhaya gang rape and murder case are being counselled for anger management in Tihar Jail after two of them, Mukesh Singh and Vinay Sharma, allegedly showed traits of violent behaviour even when prison staff approached them for routine checks. The behaviour of Pawan Gupta and Akshay Thakur is also under scanner, a source said.

from Times of India https://timesofindia.indiatimes.com/city/delhi/all-four-counselled-for-anger-management/articleshow/74232878.cms