The investigators have now unearthed that Mehdi Masroor Biswas had multiple email accounts, apart from the now revealed elsaltador@gmail.com, which he used to open his Twitter and Facebook accounts.
The report the investigators submitted to the court on Thursday suggested that Mehdi was not co-operating with the probe as he claimed to have forgotten the passwords to the email accounts. An official said it was important as Mehdi may have used them to contact other suspected IS ideologues and fighters.