RazmianRazmian is a city in, and the capital of, Rudbar-e Alamut-e Gharbi District of Qazvin County, Qazvin province, Iran.DemographicsLanguage and ethnicityPeople of Razmian are Tat and they speak the Tati language.PopulationAt the time of the 2006 National Census, the city's population was 965 in 284 households. The following census in 2011 counted 1,164 people in 305 households. The 2016 census measured the population of the city as 1,253 people in 405 households.Lambsar CastleLambsar Castle is one of the largest and the most fortified and unconquerable castles of the Ismailis in Iran, is about 5 km from Razmian.