Guwahati: In its first major crackdown on cybercrime, the Cyber Police Station of the Crime Investigation Department (CID) in Assam has arrested five individuals for allegedly running a cyber fraud operation and an illegal SIM card business in Kamrup district.
According to officials, the operation was launched after authorities received credible intelligence about a group that was procuring SIM cards illegally and using personal documents to create mule bank accounts for financial fraud. Acting on the information, the CID registered suo motu case No. 01/2026 and carried out multiple raids at different locations on March 8.
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Around 200 illegal SIM cards in use
During the investigation, officials discovered that the accused were operating around 200 SIM cards obtained illegally, in violation of telecom regulations. Authorities suspect the operation may be linked to a larger interstate cyber fraud network.
Massive evidence seized during raids
Police recovered significant incriminating materials during the raids, including:
- KYC documents of more than 1,000 individuals
- 54 bank passbooks issued under different names
- 10 blank cheque books
- Five unused debit cards
- Nearly 1,000 unissued SIM cards
- Around 500 SIM card covers
Initial analysis also revealed that some of the seized SIM cards had already been connected to cyber fraud incidents in multiple states.
Possible SIMBOX operation detected
Investigators found usage patterns suggesting that some SIM cards were being used in SIMBOX operations. This technique allows fraudsters to route international calls through local telecom networks, enabling them to mask their identities and evade detection.
Handloom centre used as front
Officials said the accused were running a handloom training centre which served as a cover for their illegal activities. They allegedly advertised training programs to attract women applicants and collected their personal identification documents during the registration process.
These documents were then used to activate SIM cards and open mule bank accounts, which were later used to transfer and launder money obtained through cyber fraud schemes.
Five accused arrested
Police arrested five individuals in connection with the case:
- Moinul Hoque from Kalita Kuchi under Hajo Police Station
- Moon Kalita from Sauramuri village under Kayan Police Station
- Kangakan Kalita from Sauramuri village under Kayan Police Station
- Hirak Jyoti Kalita from Balisatra village under Kayan Police Station
- Mostakim Ahmed from Dhuhi village, also under Kayan Police Station
Investigation underway
Authorities are continuing the investigation to determine the full extent of the network, identify victims whose documents were misused, and examine possible links with cyber fraud cases reported in different parts of the country.
Public advisory issued
Meanwhile, Assam Police has urged citizens to remain cautious and avoid sharing Aadhaar, PAN details, bank information, or personal photographs with unknown individuals or unverified training and job programs.
People have also been advised to report suspicious calls, messages, or online activities through the National Cyber Crime Helpline (1930) or the official website cybercrime.gov.in.
About the author — Suvedita Nath is a science student with a growing interest in cybercrime and digital safety. She writes on online activity, cyber threats, and technology-driven risks. Her work focuses on clarity, accuracy, and public awareness.
