Hyderabad is the home to one of the most infamous jails in the country and has some hazardous men serving their terms. Coming to jails and their ancient history, The cell at Andaman and Nicobar Islands, known as the Kala Pani jail, is the most feared jail in the country and is built in a cellar, which is why it is also called a Cellular Jail. What's more interesting is that Hyderabad has a jail that resembles the setup of the cellular jail far in the Andaman. 

Approximately 100 ft away from the Trimulgerry X Roads heading Sainikpuri, this ancient and breathtaking cellular prison cell was built in 1858 for erring British Soldiers. People who reside in the nearby areas or have been commuting to work or home via the Trimulgerry road would find it hard to believe that a prison facility exists. Not just the fact it exists, it is also currently under the supervision of the Indian Army and is not open for visiting.

The jail concept at Andaman, which came up 50 years after the jail in Secunderabad, is rumored to have used the idea of this jail during construction. The prison, which was in use until 1994, is a 2,260 square yard jail with two floors housing 40 cells on the ground floor and 35 on the first floor and cost 4 Lakh to build it back in the day. 

However, this jail has not been made into a museum-like at Andaman. It is still under the control of the 125 Infantry Battalion of the Territorial Army. It would be a new experience for tourists to find a jail hiding among the traffic and movement at the Trimulgerry road.