R R Patil, the Home Minister of Maharashtra confirmed that the police were questioning two retired army officials in connection with the blast. On Friday, Oct 24 three people including a Sadhvi, Purna Chetanand alias Pragya Singh Thakur, Shamlal Sahu and Shivnarayan Gopalsingh Kalsangra were held in connection with the case. It was revealed in the probe that the motorcycle which was used in the bomb blast belong to Pragya Singh Thakur.
Police sources revealed that Sadhvi Chetanand is a former office bearer of the Akhil Bharatiya Vidyarthi Parishad (ABVP), and a member of the Vishwa Hindu Parishad's Durga Vahini, while Sahu and Kalsangra are affiliated to the Rashtriya Swayamsevak Sangh (RSS). Sahu, who owned a mobile telephone shop and Kalsangra had started an organisation called the Rashtriya Jagran Manch in Indore. Of these three persons, two were arrested from Indore and the Sadhvi was arrested from Surat in Gujarat.
The two retired army officers, one of them said to be of the rank of a retired Major, are reportedly being questioned and also are said to be part of a RSS group of ex-servicemen and had allegedly imparted knowledge about explosives to those involved in the blasts.