The district jail authorities wrote a letter to the Sanyogitaganj Police Station last night complaining that the two accused - Zahida Pervez and Saba Faroqui - beat up inmate Simran (18) yesterday over some issue, a police sub-inspector probing the complaint said.
The police officer said he will record the statement of both the parties and then take a call on registering a criminal case in the issue.
Meanwhile, the prison authorities have also complained to Madhya Pradesh jail headquarters about Zahida and Saba's quarrelsome nature. Earlier also they had picked up a fight with fellow inmates, jail sources said.
Zahida and Saba are among the five accused in the Shehla Masood murder case.
The CBI had accused Zahida of conspiring to kill Shehla because of her alleged growing closeness with former BJP MLA Dhruv Narayan Singh.
Shehla was allegedly shot dead in front of her house in Bhopal's Koh-e-Fiza area on August 16, 2011.