Ketan Parekh, earlier jailed over 2000 stock manipulation scam, used multiple phone numbers to contact front-runners. SEBI linked these numbers to Parekh using IMEI numbers. It found numbers' location to be Parekh's home. It noted that a front-runner's birthday wish to a contact named 'Jack Latest' also confirmed it was Parekh's number as the message was sent on his birthday.