Responding to a question in the Lok Sabha on Friday, she said that no specified amount of ransom had been demanded by the hackers but a message left at a server suggested that it was a cyber-attack.

Responding to a question in the Lok Sabha on Friday, she said that no specified amount of ransom had been demanded by the hackers but a message left at a server suggested that it was a cyber-attack.

"Most of the functions of e-Hospital applications like patient registration, appointment, admission, discharge etc have been restored after two weeks of the cyber-attack," Pawar said in the written reply.

The National Nodal Agency for responding to cyber security incidents -- Indian Computer Emergency Response Team (CERT-In) has "Empanelled Information Security Auditing Organisations" for auditing including vulnerability assessment and penetration testing of the computer systems, networks and applications involving public service delivery including Ayushman Bharat Digital Mission (ABDM).

Immediate measures were taken by AIIMS to enhance security like endpoint hardening, string firewall policies and network segmentation to secure all the data of the Institute, the minister stated.

An FIR has been lodged by the All India Institute of Medical Sciences with the Special Cell of Delhi Police in connection with the attack, the minister said in her written reply.