Asaram Bapu has been in jail since August, 2013, for allegedly sexually assaulting a schoolgirl.
The Uttar Pradesh government has recommended a CBI inquiry into the death of a witness in a rape case against spiritual guru Asaram Bapu.
Akhil Gupta, 35, was shot dead in Uttar Pradesh's Muzaffarnagar in January while he was on his way home from work.
Mr Gupta, who was a cook and personal aide of Asaram Bapu, was considered an important witness in the case.
Asaram Bapu has been in jail since August, 2013, for allegedly sexually assaulting a schoolgirl. Since then, he has been booked, along with his son, for the alleged rape of two sisters in Surat in Gujarat.
Mr Gupta was the second of three witnesses to be killed in the case far. Six others have survived attacks on them.
Earlier this month, insurance agent Kripal Singh was shot in the back, not far from his home in Uttar Pradesh's Shahjahanpur. He had a six-year-old son and a pregnant wife.
After Mr Singh's death, Akhil Gupta's father, Naresh Gupta had sought a CBI probe into the murder of his son Akhil alleging that the local police failed to trace the accused in Muzaffarnagar.
Talking to reporters in Muzaffarnagar, Naresh said that he has sent a letter to the Gujarat government, demanding a CBI probe into his son's murder.
He said that local police has failed to trace the assailants even after six months since the incident took place.