She obtained bail from the Jharkhand High Court yesterday, jail authorities said today.
The Sharmas, wanted in Maoist-related cases in four states, were arrested in October 2009 near Hazaribagh National Park and were under judicial custody in the Jai Prakash Narayan Central Jail here.
The couple was wanted in Andhra Pradesh, Bihar, Jharkhand and Chhattishgarh.
Anuradha had been teaching children of female convicts in jail, the sources said.