Two more AMRI Hospital directors, who are also renowned doctors, were Friday arrested for the fire that killed 94 patients and staffers last month. A court sent them to police custody, but one of them was admitted to a hospital late Friday after he complained of chest pain.

Mani Chhetri, managing director of the high-cost health facility in South Kolkata's Dhakuria, and director Pranab Dasgupta were picked up from their residences, police said. The licence of the hospital was taken in the name of Chhetri, a veteran general physician. Dasgupta is a leading gynaecologist.

A district court at Alipore later remanded the duo, charged under the Indian Penal Code's section 304 (culpable homicide not amounting to murder), to police custody till Feb 2, police said.

However, the 92-year-old Chhetri was admitted to the ICCU of the state-run SSKM hospital late in the night.

"He has cardio-vascular problem and a multi-organ problem which is quite common at his age," SSKM Superintendent Provas Chakraborty told IANS.

Seven directors and four of the management staff are already behind bars following the country's worst-ever fire tragedy in a hospital.

Six of the directors are now lodged in Alipore Correctional Home. The seventh R.S. Agarwal continues to be admitted in SSKM Hospital following ill health since his arrest Dec 9 -- the day of the incident.