Gray langurs or Hanuman langurs, the most widespread langurs of the Indian Subcontinent, are a group of Old World monkeys constituting the entirety of the genus Semnopithecus. All taxa have traditionally been placed in the single species Semnopithecus entellus. In 2001, it was recommended that several distinctive former subspecies should be given full species status, so that seven species are recognized. A taxonomic classification with fewer species has also been proposed. Genetic evidence suggests that the Nilgiri langur and purple-faced langur, which usually are placed in the genus Trachypithecus, actually belong in Semnopithecus.

Ajmer is the 5th largest city in Rajasthan and is the centre of the eponymous Ajmer District. Ajmer has a population of around 551,360 in its urban agglomeration and 542,580 for the city (2011 census), and is located 135 kilometres (84 mi) west of Jaipur, the state capital, 274 km from Udaipur, 439 km from Jaisalmer, and 391 km from Delhi.

Source: Wikipedia