One of the three absconding accused in the Bhanwari Devi missing case was on Friday arrested near Kaparda village, a senior police official said.
The arrest of history-sheeter Balia alias Baldev Jat may lead the police to Shahabuddin, the main accused in the case, inspector general of police (IGP) Umesh Mishra said.
"A tip-off was received two days back that he (Balia) was hiding in his village Kaparda and he was arrested from a farm near the village this evening," he said.
"We will produce him before the judicial magistrate tomorrow and will seek his remand for interrogation," Mishra said.
"We are hopeful of obtaining some crucial leads from him," he said.
A police team had gone to arrest Balia on September 27 following a tip-off but he managed to escape and four policemen sustained injuries after villagers attacked them.
One Bhanwar Meghwal was arrested for sheltering Balia the next day along with eight others for attacking the police.
The other two accused, Shahabuddin and Sahi Ram Bishnoi, have been declared absconders and the process of attaching their properties has begun, he said.
They are carrying a cash reward of Rs 25,000 on their head, the IGP said.
36-year-old Devi, who was posted as auxiliary nurse midwife at a sub-centre in Jaliwada village, went missing on September 1.
Hearing a habeas corpus filed by Devi's husband Amarchand, the Rajasthan high court had expressed its displeasure over the "directionless" probe in the case and pulled up the investigation officer while a local court had directed the police to include Rajasthan minister Mahipal Maderna's name in the FIR.
Shahabuddin is allegedly an associate of the minister.
Amarchand had alleged that his wife was abducted at the behest of Maderna and his associates. The minister had, however, dismissed the allegation.