4 Arrested in Bihar as International Cyber Fraud Ring Using Chinese SIM Boxes Is Busted
4 Suspects Arrested after an International Cyber Fraud Ring using Chinese SIM boxes was busted in Bihar
A sophisticated worldwide cyber fraud enterprise operating out of Madhubani district has been discovered by Bihar Police, who have arrested four guys and seized a large stockpile of electronic equipment and Chinese-made SIM boxes used to defraud victims nationwide.
Following intelligence reports of cross-border cyber activity with possible national security ramifications, the Bihar Police’s cybercrime and security division, with assistance from Madhubani police, conducted the crackdown.
In addition to ₹1.68 lakh in cash, authorities found seven SIM boxes made in China, 136 cell phones, more than 136 SIM cards, Wi-Fi cables, network switches, and other digital equipment during the operation. The seized infrastructure, according to officials, was a potent instrument for widespread internet fraud since it could process hundreds of calls at once.
According to senior investigators, the gang was converting international calls coming from China, Thailand, and Cambodia into local Indian numbers using SIM box technology. This made it possible for foreign cybercriminals to impersonate domestic callers, winning over gullible victims and getting past telecom monitoring systems.

In addition, the illicit call-routing center was run out of a domestic home in Madhubani town’s Tirhut Colony neighborhood. Fraudsters allegedly helped foreign-based cybercriminals carry out financial scams that targeted individuals in Bihar and numerous other states from this location.
Mandeep Kumar and Roshan Kumar, sons of Suresh Singh, were identified by police as two of the detained suspects. They are thought to be important operators overseeing the technical setup. The two other individuals who were arrested, Mohammad Ehsan and Vikas Kumar, are accused of providing SIM cards that were obtained using fictitious names
In addition, the illicit call-routing center was run out of a domestic home in Madhubani town’s Tirhut Colony neighborhood. Fraudsters allegedly helped foreign-based cybercriminals carry out financial scams that targeted individuals in Bihar and numerous other states from this location.
Mandeep Kumar and Roshan Kumar, sons of Suresh Singh, were identified by police as two of the detained suspects. They are thought to be important operators overseeing the technical setup. The two other individuals who were arrested, Mohammad Ehsan and Vikas Kumar, are accused of providing SIM cards that were obtained using fictitious names and addresses, which was a critical component that allowed the scheme to operate covertly.
Each SIM card was mapped to the SIM box system, according to investigators, making foreign calls seem like regular domestic calls. As a result, victims were more likely to answer the calls and become victims of fraud schemes that ranged from investment scams and phony customer service calls to threats of digital arrest.
Input from a high-level coordination meeting, including the Bihar STF, intelligence services, and other security entities that focused on border security and new cyber threats, led to the operation’s revelation. Authorities have notified the National Investigation Agency because of the case’s sensitivity and global connections.
The employment of sophisticated telecom manipulation techniques and the involvement of foreign sites, according to officials, prompted concerns about potential misuse for anti-national actions as well as cyber fraud.

Based on technical research and call-routing trails, other raids were carried out in the Madhubani district’s Jaynagar and Khajauli areas after the initial arrests. In order to identify foreign handlers and track the entire network, police are currently reviewing call data records, cash transactions, and device logs.
According to a senior police officer, preliminary investigation indicates that the scam may have enabled thousands of false calls every day and has been in operation for several months. Criminals who are seated overseas can pretend to be calling from India thanks to the SIM box mechanism. The public’s trust and telecom security are seriously threatened by this,” the official stated.
In order to determine the precise scope of operations, financial gains, and connections with overseas cyber syndicates, the apprehended accused are being questioned. In order to identify the source of the equipment and stop compromised SIM cards, police are also working with intelligence services and the Department of Telecommunications.
When people receive calls purporting to be from banks, government offices, or police enforcement, authorities have advised them to exercise caution. According to authorities, “users should verify before sharing personal or financial details, even if a number appears local.”
The case demonstrates how quickly cybercrime is developing, with global syndicates targeting Indian residents by taking advantage of local facilitators and technological flaws. More arrests are anticipated as the investigation deepens and digital evidence is examined, according to officials.
About The Author:
Yogesh Naager is a content marketer who specializes in the cybersecurity and B2B space. Besides writing for the News4Hackers blogs, he also writes for brands including Craw Security, Bytecode Security, and NASSCOM.
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