The Allahabad high court said no incriminating material was recovered from the possession of Mohammad Alam. He is the first out of the eight accused in the conspiracy case to be granted bail.
On October 5 last year, Masud Ahmed was travelling through Mathura, a town in the northern state of Uttar Pradesh, when a team of police officers waved him over.
The officers, who were manning a checkpoint, asked him and three co-passengers questions including their names, affiliation and purpose of travel.
Wearing a grey button-down shirt, a blue hat with his beard trimmed short, the 26-year-old student activist told the officers they were on their way to Hathras, a small town in Uttar Pradesh state 43km (26 miles) from Mathura and about 200km (124 miles) from the capital, New Delhi.
The four were going to meet the family of a 19-year-old Dalit teenager who had been gang-raped by four Hindu upper-caste men three weeks before their journey.