Chandigarh, Nov. 18 -- Investigating agencies have tightened their grip on Al-Falah University following the Delhi blast, placing the wife and daughter of arrested professor Dr. Nisar-ul-Hassan under house arrest inside the university campus.

Both are being questioned in connection with the alleged terror module linked to the blast near the Red Fort.

Officials have also restricted the movement of ten MBBS students, barring them from leaving the campus while their mobile phones remain seized for forensic analysis. Call records, chats, and stored data are being examined to trace possible links in the network.

Dr. Nisar, a professor in the university's Department of Medicine, is accused of maintaining contact with suspected operatives Dr. U...