SEBI's Investigation Reveals Ketan Parekh's Front-Running Tactics

SEBI vs. Ketan Parekh: The Spy-Like Front-Running Probe That Left No Stone Unturned

The script reads more like a crime thriller than a regulatory order. But make no mistake—this is no work of fiction. SEBI’s interim order dated January 2, 2025, lifts the lid on a carefully orchestrated front-running operation, allegedly masterminded by none other than Ketan Parekh—the same man at the heart of India’s 2001 stock market scandal.

Only this time, the playbook had evolved. It wasn’t just phone calls and hasty trades. What SEBI uncovered was a maze of burner phones, code names, encrypted chats, disposable SIM cards, and angadia couriers—cash carriers that remain invisible to the formal banking system. It was market abuse with a spy film’s finesse.

The Core of the Operation: Confidential Info and Quick Profits

At the heart of it all was inside knowledge—non-public information about upcoming bulk trades, particularly Tiger Global’s offloading of shares in PB Fintech (the parent company of Policybazaar). Armed with this information before it hit the market, Parekh and his associates moved quietly, slipping in their own trades just ahead of the big ones. The profit? Substantial. The risk? They thought it was manageable—until it wasn’t.

But SEBI wasn’t just monitoring price movements. They were watching patterns—location data, device usage, even WhatsApp group banter. What followed was an investigation that rivalled any intelligence agency’s operation in both scope and method.

The Alias Phone Network

During the search-and-seizure drives, SEBI’s teams seized multiple devices and phone records. They came across several mobile numbers, many saved under cryptic labels—"Jack", "John", "Wellwisher", "Bhai", and "Jack Latest". These weren’t just friendly nicknames—they were meant to obscure identities.

One by one, SEBI started connecting the dots.

The giveaway? IMEI numbers. While Parekh and his network changed SIMs often, they slipped up by reusing phones. IMEI—short for International Mobile Equipment Identity—is a fingerprint for every handset. Once SEBI began mapping IMEIs across multiple phone numbers, the veil started to lift.

For instance:

A number ending in 8243, registered in the name of Parekh’s wife, shared an IMEI with another number ending in 9917—tracing back to the same handset.
Another line, ending in 2996, had already been identified by Parekh himself. Its IMEI was later matched with 1068, which Salgaocar, his associate, confirmed was used to coordinate trades.

And then there was XXX5555484, saved as "Jack Latest". On February 15, 2023, members of a WhatsApp group wished this user a happy birthday. SEBI checked the PAN records. Ketan Parekh’s date of birth? February 15. The alias crumbled. SEBI had their man.

Matching Digital Trails with Real-World Location

Once the phones were traced, SEBI turned to Call Detail Records (CDRs). These logs showed when and where each number was active. During sensitive hours—between 9 PM and 6 AM, when trade prep would intensify—multiple alias numbers consistently pinged from the same location:

Zaver Mahal, 19/B, Marine Drive, Mumbai. Ketan Parekh’s residence.

Even if the numbers were rotated, the location data was constant. The phones may have changed, but the signal led back to the same door.

Hotels, Flights, and Ground Logs: The Travel Trail

Then came the real-world matchups. SEBI accessed hotel booking logs, airline manifests, and city-wise mobile activity.

For example:

A suspect phone line would suddenly become active in Ahmedabad on a particular date.
That same day, a room booking in Parekh’s name appeared at a local hotel.
Hotel staff confirmed his stay.
The device registered trades in that window.

The tech matched the travel. The story lined up.

Phones like:

XXX0308243
XXX7571068
XXX6562996
XXX5555484

...turned up repeatedly in SEBI’s timelines—each now tied not just to devices and data, but to movement, accommodation, and physical presence.

WhatsApp Group Chats and the Final Confirmation

One of the more damning pieces of evidence lay in the casual tone of a WhatsApp group where “Jack Latest” was wished a happy birthday. On the surface, it’s nothing. But for investigators, it was a timestamped admission.

The date, the alias, the phone—all aligned. “Jack Latest” wasn’t some mystery trader. He was Ketan Parekh. And it was through this alias that trading instructions were relayed—sometimes in detailed sequence, sometimes via screenshots.

What SEBI Pieced Together

A web of pseudonymous communication, often using phones registered in the names of family or trusted proxies.
Advance knowledge of institutional trades, primarily Tiger Global’s divestments, which formed the basis for timing profitable trades.
A profit-sharing model coordinated across brokers, locations, and chat groups—funded and settled in cash, bypassing banks via angadia networks.
Constant changes in numbers and handsets, but fatal continuity in IMEI, location, and device behavior.

Why This Case Matters

It’s not just about Ketan Parekh. It’s about how tech and tradition intersect in the modern manipulation of markets.

Old school meets new tools: Angadias for cash. Encrypted apps for communication. A system built on trust and timing—exploiting both financial grey zones and digital blind spots.
SEBI’s learning curve: This wasn’t a passive probe. The regulator stitched together call records, IMEIs, hotel logs, geo-tagged messages, and group chats to expose a coordinated fraud. Their playbook has clearly evolved.
The end of digital safe zones: Even carefully constructed digital masks couldn’t withstand sustained forensic pressure. The message is clear—aliases and burner phones are no longer shields.

Final Word

This case isn’t just about punishing one individual or network. It’s a broader signal to the market that regulatory surveillance is no longer reactive—it’s becoming predictive. And it's getting personal.

If you think trading instructions whispered over encrypted apps and cash exchanges through trusted couriers can’t be traced, think again. SEBI’s already watching. And by the time they knock on the door, chances are—they’ve already connected the dots.