Haryana has 90 state level constituencies and 11 Lok Sabha constituencies. Several state constituencies of Haryana are very recent and were formed in 2019. 

The Haryana Legislative Assembly is the state legislature of Haryana, India. It is a unicameral body. A unicameral system is where the legislative body singly makes and passes laws. Every constitution has a different way of organising the legislature. The body may be unicameral (one chamber) or bicameral (two chambers). Unicameral legislatures are common in small nations with unitary administrations. In federal states, whether large or small, bicameral legislatures are typical, with one chamber representing the main geographical subdivisions.

Haryana has a unicameral legislative system where there is only one legislative house. The state legislative assembly is the sole legislative body in 29 states and three union territories with unicameral state legislatures, and it is the lower house of bicameral state legislatures in six states, with the upper chamber being the State Legislative Council. 

The different Lok Sabha constituencies and state level constituencies have been discussed below.

Ambala Lok Sabha Constituency

1. Kalka – The first constituency was formed in 1967 by Lachhman Singh, who solely won the choices. The most recent legislative assembly was formed by Pardeep Chaudhary, a member of the Indian National Congress, in 2019.
2. Panchkula – The foremost constituency was formed by Devender Kumar Bansal in 2009, who was from the Indian National Congress. The rearmost constituency was formed by Gian Chand Gupta, a member of the Bharatiya Janata Party, in 2019.
3. Naraingarh – The first constituency was formed in 2014 by Nayab Singh from Bharatiya Janata Party. The most recent legislative assembly was formed in 2019 by Shalley, a member of the Indian National Congress.
4. Ambala Cantt – The foremost constituency was formed by D. R. Anand in 1967 who was a member of the Indian National Congress. The last three legislative assemblies were formed by Anil Vij, a member of the Bharatiya Janata Party, in 2009, 2014, and 2019.

Kurukshetra Lok Sabha Constituency

1. Radaur – The first constituency was formed in 2019 by Bishan Lal, a member of the Indian National Congress.
2. Shahbad – The foremost constituency was formed by J. Chander in 1967, a member of the Indian National Congress. The latest legislative assembly was formed by Ram Karan, a member of the Jananayak Janata Party, in 2019.
3. Kaithal – The first constituency was formed in 1967 by Om Prabha from the Indian National Congress. The most recent legislative assembly was formed in 2019 by Leela Ram, a member of the Bharatiya Janata Party.

Karnal Lok Sabha Constituency

1. Nilokheri – The first constituency was formed in 2014 by Bhagawan Das Kabir Panthi, a representative of the Bharatiya Janata Party. The most recent legislative assembly was formed by Dharam Pal Gonder in 2019, who was independent and not part of any party.
2. Assandh – The foremost constituency was formed by Jogi Ram in 2009. He was a member of the Janata Party. The last legislative assembly was formed by Shamsher Singh Gogi, a member of the Indian National Congress, in 2019.

Sonipat Lok Sabha Constituency

1. Sonipat – The first constituency was formed in 2009 by Kavita Jain. She was a member of the Bharatiya Janata Party. The rearmost legislative assembly was formed by Surender Panwar, a member of the Indian National Congress, in 2019.
2. Baroda – The foremost constituency was formed by R. Dhari in 1967, who was from the Indian National Congress. The last legislative assembly was formed by Indu Raj, a member of the Indian National Congress, in 2020.
3. Jind – The first constituency was formed in 1967 by Daya Krishan from Indian National Congress. The most recent legislative assembly was formed in 2019 by Krishan Lal Middha, a member of the Bharatiya Janata Party.

Sirsa Lok Sabha Constituency

1. Fatehabad – The first constituency was formed in 1967 by G. Rai, a member of the Indian National Congress. The most recent legislative assembly was formed by Dura Ram, a member of the Bharatiya Janata Party, in 2019.
2. Ratia – The foremost constituency was formed by Ravinder Baliala in 2014. He was a member of the Indian National Lok Dal. The latest legislative assembly was formed by Lakshman Napa, a member of the Bharatiya Janata Party, in 2019.

Gurgaon Lok Sabha Constituency

1. Rewari – The first constituency was formed in 1989 by Ajay Singh Yadav, a representative of the Indian National Congress. The most recent legislative assembly was formed by Chiranjeev Rao, a member of the Indian National Congress, in 2019.
2. Pataudi – The earliest constituency was formed by B. Singh in 1967, who represented the Indian National Congress. The last legislative assembly was formed by Satya Prakash Jaravata, a member of the Bharatiya Janata Party, in 2019.
3. Badshahpur –  The first constituency was formed in 2009 by Rao Dharampal from the Indian National Congress. The most recent legislative assembly was formed in 2019 by Rakesh Daultabad, who was not a member of any party.
4. Gurgaon – The foremost constituency was formed by Pratap Singh Thakran in 1967, who was from the Bharatiya Jan Sangh. The last three legislative assemblies were formed by Sudhir Singla, a member of the Bharatiya Janata Party, in 2019.

Faridabad Lok Sabha Constituency

1. Hodal – The first constituency was formed in 1982 by Girraj Kishore Mahaur. He was a member of Lok Dal. The most recent legislative assembly was formed by Jagdish Nayar, a member of the Bharatiya Janata Party, in 2019.
2. Faridabad – The foremost constituency was formed by K. D. Kapil in 1967, a member of the Indian National Congress. The latest constituency was formed by Narender Gupta, a member of the Bharatiya Janata Party, in 2019.

Conclusion

Haryana has 90 state-position electoral districts and 11 Lok Sabha districts. It has a number of new state constituencies that were established in 2019. Haryana has a unicameral legislative structure, which means there is just one chamber of council. The constituencies like Ganaur, Tohana, Badli, Palwal and many others are very new and were formed in the year 2019 itself, whereas Kalka, Shahbad, Kaithal, Baroda, and Jind have existed since 1967. From the most recent legislative assembly elections, it can be seen that the Bharatiya Janata Party and the Indian National Congress are the leading parties in Haryana, followed by the Jannayak Janata Party.