Jaipur: The shadow of the NEET-UG 2026 paper leak investigation has now fallen on the entire family, as investigators found that several members of the Biwal family are linked to all the three arrested accused. CBISecured admission in medical colleges and are currently pursuing MBBS course in Rajasthan and other parts of the country.CBI on Wednesday arrested Dinesh Biwal, his brother Mangilal Biwal and Mangilal’s son Vikas Biwal in the paper leak case.Police sources said investigators became suspicious “from day one” when it was revealed that four members of the same family had cracked NEET and entered medical colleges.Investigators are now probing whether the confessions of the family members had any connection with the alleged leak racket.According to preliminary findings, Vikas Biwal is a first-year student at Sawai Madhopur Medical College, while his sister is enrolled at Dausa Medical College. Another relative, the daughter of Mangilal’s deceased brother Ghanshyam, is a student at SMS Medical College in Jaipur, while Ghanshyam’s other daughter is studying in a medical college in Mumbai. Sources said another member of the family may be studying in a medical college, but the CBI took over the case before the information could be confirmed by state agencies.The scrutiny around the family has intensified after some people allegedly exposed old social media posts of Dinesh Biwal in which he had claimed that five children of his family have secured admission in medical colleges. However, the agencies said they were still verifying the claim.Investigators found that they all studied at the same coaching institute in Sikar, although sources later claimed that they were enrolled only for the mock test series. Officials said that all three had appeared in the NEET-UG examination of 2025.“There is no direct evidence yet that they cleared the exam using leaked question papers, but the fact that five members of the same family secured admission to MBBS in the same period naturally raises questions, especially when the family is now linked to an alleged paper leak syndicate,” a senior official said on condition of anonymity.Sources said investigators suspect that Dinesh paid money to another accused, Gurgaon-based Yash Yadav, to obtain the leaked NEET-UG 2026 question paper to benefit his son. Sources said that another member of the family was also preparing for NEET, whose identity has not been disclosed.CBI has already taken Dinesh, Mangilal and Vikas to New Delhi for further questioning. In connection with the investigation, a CBI team also reached the family’s house in Jamwa-Ramgarh near Jaipur.As television crews and journalists gathered outside the residence following the arrest on Thursday, family members strongly denied the allegations. Speaking to local media, the wives of Dinesh and Mangilal insisted that their children had secured the seats through hard work and claimed that the allegations were baseless.