The trio of Bangladeshis incarcerated at Alipore Jail in Kolkata remain at large after pulling off the audacious prison break over the weekend.
West Bengal state's prison director Arun Gupta said the runaways made their dash after drugging their jail guards and fellow inmates with spiked dessert.
"The trio mixed sedatives in the sweets brought from the jail canteen, and served these to inmates and some prison guards on Saturday night," said Gupta.
Berlin prison hit by three escapes in one week
They then cut through the bars on their cell window and used bed sheets knotted into a length to descend the six-metre (20 feet) walls to the ground below.
Their absence was not detected until prison wardens conducted the morning head count, Gupta said.
Three French prison guards hurt in attack by al Qaeda inmate
"It appears guards on the watch towers were sleeping when the three escaped. Three wardens have been suspended," he said.
A hunt is underway for the fugitives.
In 2016 eight suspected members of a banned militant group escaped from a jail in Bhopal in central India after slitting the throat of a prison guard.
COMMENTS
Comments are moderated and generally will be posted if they are on-topic and not abusive.
For more information, please see our Comments FAQ