Tulnabi is a village in the Echmiadzin uezd of the former Iravan governorate, later in the former Ashtarak district, and currently in the Kotayk province. The provincial centre lies 31 km to the southwest of the town of Akhta (Hrazdan), at a height of 1,700 m above sea level. It had been a part of the former Nairi district from 1972.

The village was solely inhabited by Azerbaijanis: 227 in 1873, 321 in 1886, 261 in 1897, 219 in 1908, 406 in 1914, 353 in 1916, 379 in January 1918. In 1918 the Azerbaijanis, the aboriginal inhabitants of the village, were deported having been exposed to the aggression of Armenian armed units, and the Armenians removed from Türkiye were settled in the village. At present, only Armenians live in the village.

The toponym was coined by combining the word “tul” used to mean “a fenced place” in Turkic and the personal name “Nebi” to express “a fenced place which belongs to Nabi”.

By the decree of the Presidium of the Supreme Soviet of the Armenian SSR dated 4 April 1946, the village was renamed “Saralanj”. According to the law “On the administrative-territorial division of the Republic of Armenia” dated 7 November 1995, it was integrated into the administrative area of the Kotayk province.

Geographic coordinates: latitude 40°23’ N., longitude 44°31’ E.