Two others arrested in the scam were identified as Ganesh Parsuram of Raichur in Karnataka, Rahul Raghunath of Raigadh and Santosh Sitaram of Pune.
Agarwal said accused Manoj Rana, Manish Kumar, Praveen Kumar and Manish Kumar Moga had earlier worked as clerks in the DGFT and were well-versed in the functioning of the directorate. They used to fraudulently secure codes of big exim firms and by checking their records, used to ascertain the money in their accounts as well as the value of the ROSCTL coupons they happened to be entitled to, before targetting them.