Due to the increased number of seats in the legislature of Kerala, space became a major constraint – especially in the 1970s.

[2] The site chosen was Government Estate at Palayam, in heart of Thiruvananthapuram city, which was once the headquarters of the Nair Brigade of the Travancorean army.

The Niyamasabha Mandiram has 5 stories including ground floor and a basement meant for the parking of official cars.

The foyer opens to the Central Assembly Hall, which is adorned with ornate panelling in teak and rosewood.

The Central Hall is 95 feet high and has 8 galleries, which can accommodate a total of 800 people, and a Media Box.

Apart from this, the NCT is an authorised centre for training legislators and officials of the Maldives's People Majlis.

In the past interns from other Indian states, Sri Lanka, SAARC and Canada have trained at the NCT.

The Bureau of Parliamentary Studies and Training (BPST), New Delhi and the Institute of Management in Government, Kerala (IMG) have chosen NCT as a centre for their programmes.

This is done primarily to maintain the independence of the legislature from the executive – which includes police department – as the latter is answerable to the state government.

Due to this reason, the protection and security of the house is maintained by a specialised force, known as the Watch and Ward.

The Watch and Ward is also responsible for maintaining sanity of the Niyamasabha and is empowered to arrest and remove any individual, including any MLA, upon the orders of the Speaker, on account of unacceptable behaviour or violation of assembly laws.