His tweets, written under the name Shami Witness, were seen 2m times each month, making him perhaps the most influential Islamic State Twitter account, with over 17,700 followers.
Two thirds of all foreign fighters on Twitter followed him. When a fighter’s Twitter account was suspended, he often promoted the new one and urged people to follow it.
He spoke to British jihadis regularly, before they left to join the Islamic State, and after they arrived, and if they died he praised them as martyrs.
Dr Ajai Sahni, executive director of the Institute for Conflict Management in Delhi, told Channel 4 News that the process of India’s legal system is “punishment by trial” and that the prospects of conviction were slim.