The Laksmi Narayan Dev Gadi (Gujarati:- લક્ષ્મીનારાયણ દેવ ગાદી) is one of the two gadis (diocese) that together form the Swaminarayan Sampradaya. It is headquartered at the Shri Swaminarayan Mandir, Vadtal and controls the Dakshin Vibhag Lekh.

In Vadtal, on Prabodhini Ekadashi of Vikram Samvat 1882, Swaminarayan adopted his nephews Ayodhyaprasadji Pande (Son of elder brother Rampratapji) and Raghuveerji Pande (Son of younger brother Ichcharamji) as his sons. Establishing the two Gadis i.e. Nar Narayan Dev Gadi, headquartered at Ahmedabad and Lakshminarayan Dev Gadi, headquartered at Vadtal, Swaminarayan instructed the two cousins to draw lots, to decide who would be seated on which Gadi. Swaminarayan handed over the responsibility of Satsang and both acharyas to Gopalanand Swami by instructing Gopalanand Swami to make each and every satsangi including sadhus, Brahmachari and haribhakt to remain under the commands of the Acharyas.

Ayodhyaprasadji Maharaj was appointed the inaugural Acharya of the Nar Narayan Dev Gadi (also known as the Uttar Vibhag - Northern division), whilst Raghuveerji Maharaj became the inaugural Acharya of the Lakshminarayan Dev Gadi (also known as the Dakshin Vibhag - Southern division).

The administrative division between the two is set forth in minute detail in a document written by Swaminarayan, called Desh Vibhag Lekh. The method by which future Acharyas are to be appointed is enshrined in the document Desh Vibhag Lekh.

Swaminarayan then instructed all the followers present to do pooja of their respective acharyas.

In 1826 at Vadtal, Swaminarayan established the dual Acharyaship in Dharmavanshi Acharyas, whom he intended as his successor. "Dharmavanshi" means "belonging to the lineage of Dharmadev" – the father of Swaminarayan. Swaminarayan enthroned his two adopted sons, Ayodhyaprasad Pande and Raghuvir Pande, who were the sons of his brothers Rampratapji and Ichcharamji, as the spiritual leaders of the Nar Narayan Dev Gadi headquartered at Ahmedabad and the Lakshmi Narayan Dev Gadi headquartered at Vadtal respectively. He installed them as the Acharyas for all followers, including householders and ascetics. Swaminarayan gave sole authority to these two individuals to install murtis in temples and to initiate sadhus and householders into the Sampradaya. He did this using a legal document known as "Desh Vibhag no Lekh", which he dictated and was written by Shukanand Swami. Learned saints and elder satsangis witnessed this document. Copies were presented to the inaugural Acharyas, Ayodhyaprasad Pande and Raghuvir Pande – these are currently in the possession of the current Acharyas. The document was accepted by the Bombay High Court as the authoritative document regarding the apportionment of the two dioceses, so it has legal standing. Presently, Acharya Maharajshri Rakeshprasadji Maharaj is at the head of Lakshmi Narayan Dev Gadi, while Acharya Maharajshri Koshalendraprasadji Maharaj is at the head of the Nar Narayan Dev Gadi at Ahmedabad.

Swaminarayan thought that as he had established the temples and the Swaminarayan Sampradaya, he wanted to keep his sadhus free from the affairs dealing with wealth, power and other worldly affairs. He decided to create leaders who would subsequently be responsible for the Swaminarayan Sampradaya. This led to his decision to appoint his nephews as Acharyas. The constitution of the Sampradaya is laid out in Desh Vibhag Lekh which describes in detail the functions of the Acharyas.

... it is my command to all sadhus, bhamcharis and all satsangies, that for the purpose of your kalyaan (emancipation) you must obey and follow the two Acharyas of Dharmavansh, and obey their commands by thought, action and speech. If this is compromised and whoever turns elsewhere (rejecting the Acharyas) will find that they will never find sukh (happiness) in this world or the worlds beyond and will experience immense distress ... ― Desh Vibhag Lekh